ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/README.FAQ
(Generate patch)

Comparing rxvt-unicode/README.FAQ (file contents):
Revision 1.37 by root, Tue Jan 31 00:58:20 2006 UTC vs.
Revision 1.40 by root, Tue Jan 31 20:57:29 2006 UTC

1FREQUENTLY ASKED QUESTIONS 1FREQUENTLY ASKED QUESTIONS
2 The new selection selects pieces that are too big, how can I select 2 Meta, Features & Commandline Issues
3single words? 3 My question isn't answered here, can I ask a human?
4 If you want to select e.g. alphanumeric words, you can use the following 4 Before sending me mail, you could go to IRC: "irc.freenode.net", channel
5 setting: 5 "#rxvt-unicode" has some rxvt-unicode enthusiasts that might be
6 interested in learning about new and exciting problems (but not FAQs :).
6 7
7 URxvt.selection.pattern-0: ([[:word:]]+) 8 Does it support tabs, can I have a tabbed rxvt-unicode?
9 Beginning with version 7.3, there is a perl extension that implements a
10 simple tabbed terminal. It is installed by default, so any of these
11 should give you tabs:
8 12
9 If you click more than twice, the selection will be extended more and 13 urxvt -pe tabbed
10 more.
11 14
12 To get a selection that is very similar to the old code, try this
13 pattern:
14
15 URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+)
16
17 Please also note that the *LeftClick Shift-LeftClik* combination also
18 selects words like the old code.
19
20 I don't like the new selection/popups/hotkeys/perl, how do I
21change/disable it?
22 You can disable the perl extension completely by setting the
23 perl-ext-common resource to the empty string, which also keeps
24 rxvt-unicode from initialising perl, saving memory.
25
26 If you only want to disable specific features, you first have to
27 identify which perl extension is responsible. For this, read the section
28 PREPACKAGED EXTENSIONS in the rxvtperl(3) manpage. For example, to
29 disable the selection-popup and option-popup, specify this
30 perl-ext-common resource:
31
32 URxvt.perl-ext-common: default,-selection-popup,-option-popup
33
34 This will keep the default extensions, but disable the two popup
35 extensions. Some extensions can also be configured, for example,
36 scrollback search mode is triggered by M-s. You can move it to any other
37 combination either by setting the searchable-scrollback resource:
38
39 URxvt.searchable-scrollback: CM-s
40
41 The cursor moves when selecting text in the current input line, how
42do I switch this off?
43 During rlogin/ssh/telnet/etc. sessions, clicking near the cursor
44outputs strange escape sequences, how do I fix this?
45 These are caused by the "readline" perl extension. Under normal
46 circumstances, it will move your cursor around when you click into the
47 line that contains it. It tries hard not to do this at the wrong moment,
48 but when running a program that doesn't parse cursor movements or in
49 some cases during rlogin sessions, it fails to detect this properly.
50
51 You can permamently switch this feature off by disabling the "readline"
52 extension:
53
54 URxvt.perl-ext-common: default,-readline 15 URxvt.perl-ext-common: default,tabbed
55 16
56 Why doesn't rxvt-unicode read my resources? 17 It will also work fine with tabbing functionality of many window
57 Well, why, indeed? It does, in a way very similar to other X 18 managers or similar tabbing programs, and its embedding-features allow
58 applications. Most importantly, this means that if you or your OS loads 19 it to be embedded into other programs, as witnessed by doc/rxvt-tabbed
59 resources into the X display (the right way to do it), rxvt-unicode will 20 or the upcoming "Gtk2::URxvt" perl module, which features a tabbed urxvt
60 ignore any resource files in your home directory. It will only read 21 (murxvt) terminal as an example embedding application.
61 $HOME/.Xdefaults when no resources are attached to the display.
62 22
63 If you have or use an $HOME/.Xresources file, chances are that resources 23 How do I know which rxvt-unicode version I'm using?
64 are loaded into your X-server. In this case, you have to re-login after 24 The version number is displayed with the usage (-h). Also the escape
65 every change (or run xrdb -merge $HOME/.Xresources). 25 sequence "ESC [ 8 n" sets the window title to the version number. When
26 using the urxvtc client, the version displayed is that of the daemon.
66 27
67 Also consider the form resources have to use: 28 Rxvt-unicode uses gobs of memory, how can I reduce that?
29 Rxvt-unicode tries to obey the rule of not charging you for something
30 you don't use. One thing you should try is to configure out all settings
31 that you don't need, for example, Xft support is a resource hog by
32 design, when used. Compiling it out ensures that no Xft font will be
33 loaded accidentally when rxvt-unicode tries to find a font for your
34 characters.
68 35
69 URxvt.resource: value 36 Also, many people (me included) like large windows and even larger
37 scrollback buffers: Without "--enable-unicode3", rxvt-unicode will use 6
38 bytes per screen cell. For a 160x?? window this amounts to almost a
39 kilobyte per line. A scrollback buffer of 10000 lines will then (if
40 full) use 10 Megabytes of memory. With "--enable-unicode3" it gets
41 worse, as rxvt-unicode then uses 8 bytes per screen cell.
70 42
71 If you want to use another form (there are lots of different ways of 43 How can I start urxvtd in a race-free way?
72 specifying resources), make sure you understand wether and why it works. 44 Try "urxvtd -f -o", which tells urxvtd to open the display, create the
73 If unsure, use the form above. 45 listening socket and then fork.
74 46
75 I can't get transparency working, what am I doing wrong? 47 How do I distinguish wether I'm running rxvt-unicode or a regular xterm? I need this to decide about setting colors etc.
76 First of all, transparency isn't officially supported in rxvt-unicode, 48 rxvt and rxvt-unicode always export the variable "COLORTERM", so you can
77 so you are mostly on your own. Do not bug the author about it (but you 49 check and see if that is set. Note that several programs, JED, slrn,
78 may bug everybody else). Also, if you can't get it working consider it a 50 Midnight Commander automatically check this variable to decide whether
79 rite of passage: ... and you failed. 51 or not to use color.
80 52
81 Here are four ways to get transparency. Do read the manpage and option 53 How do I set the correct, full IP address for the DISPLAY variable?
82 descriptions for the programs mentioned and rxvt-unicode. Really, do it! 54 If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled
55 insecure mode then it is possible to use the following shell script
56 snippets to correctly set the display. If your version of rxvt-unicode
57 wasn't also compiled with ESCZ_ANSWER (as assumed in these snippets)
58 then the COLORTERM variable can be used to distinguish rxvt-unicode from
59 a regular xterm.
83 60
84 1. Use inheritPixmap: 61 Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script
62 snippets:
85 63
86 Esetroot wallpaper.jpg 64 # Bourne/Korn/POSIX family of shells:
87 rxvt -ip -tint red -sh 40 65 [ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
66 if [ ${TERM:-foo} = xterm ]; then
67 stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
68 echo -n '^[Z'
69 read term_id
70 stty icanon echo
71 if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
72 echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
73 read DISPLAY # set it in our local shell
74 fi
75 fi
88 76
89 That works. If you think it doesn't, you lack transparency and tinting 77 How do I compile the manual pages on my own?
90 support, or you are unable to read. 78 You need to have a recent version of perl installed as /usr/bin/perl,
79 one that comes with pod2man, pod2text and pod2html. Then go to the doc
80 subdirectory and enter "make alldoc".
91 81
92 2. Use a simple pixmap and emulate pseudo-transparency. This enables you
93 to use effects other than tinting and shading: Just shade/tint/whatever
94 your picture with gimp:
95
96 convert wallpaper.jpg -blur 20x20 -modulate 30 background.xpm
97 rxvt -pixmap background.xpm -pe automove-background
98
99 That works. If you think it doesn't, you lack XPM and Perl support, or
100 you are unable to read.
101
102 3. Use an ARGB visual:
103
104 rxvt -depth 32 -fg grey90 -bg rgba:0000/0000/4444/cccc
105
106 This requires XFT support, and the support of your X-server. If that
107 doesn't work for you, blame Xorg and Keith Packard. ARGB visuals aren't
108 there yet, no matter what they claim. Rxvt-Unicode contains the
109 neccessary bugfixes and workarounds for Xft and Xlib to make it work,
110 but that doesn't mean that your WM has the required kludges in place.
111
112 4. Use xcompmgr and let it do the job:
113
114 xprop -frame -f _NET_WM_WINDOW_OPACITY 32c \
115 -set _NET_WM_WINDOW_OPACITY 0xc0000000
116
117 Then click on a window you want to make transparent. Replace 0xc0000000
118 by other values to change the degree of opacity. If it doesn't work and
119 your server crashes, you got to keep the pieces.
120
121 Isn't rxvt supposed to be small? Don't all those features bloat? 82 Isn't rxvt-unicode supposed to be small? Don't all those features bloat?
122 I often get asked about this, and I think, no, they didn't cause extra 83 I often get asked about this, and I think, no, they didn't cause extra
123 bloat. If you compare a minimal rxvt and a minimal urxvt, you can see 84 bloat. If you compare a minimal rxvt and a minimal urxvt, you can see
124 that the urxvt binary is larger (due to some encoding tables always 85 that the urxvt binary is larger (due to some encoding tables always
125 being compiled in), but it actually uses less memory (RSS) after 86 being compiled in), but it actually uses less memory (RSS) after
126 startup. Even with "--disable-everything", this comparison is a bit 87 startup. Even with "--disable-everything", this comparison is a bit
157 gnome-terminal (21152k + extra 4204k in separate processes) or konsole 118 gnome-terminal (21152k + extra 4204k in separate processes) or konsole
158 (22200k + extra 43180k in daemons that stay around after exit, plus half 119 (22200k + extra 43180k in daemons that stay around after exit, plus half
159 a minute of startup time, including the hundreds of warnings it spits 120 a minute of startup time, including the hundreds of warnings it spits
160 out), it fares extremely well *g*. 121 out), it fares extremely well *g*.
161 122
162 Why C++, isn't that unportable/bloated/uncool? 123 Why C++, isn't that unportable/bloated/uncool?
163 Is this a question? :) It comes up very often. The simple answer is: I 124 Is this a question? :) It comes up very often. The simple answer is: I
164 had to write it, and C++ allowed me to write and maintain it in a 125 had to write it, and C++ allowed me to write and maintain it in a
165 fraction of the time and effort (which is a scarce resource for me). Put 126 fraction of the time and effort (which is a scarce resource for me). Put
166 even shorter: It simply wouldn't exist without C++. 127 even shorter: It simply wouldn't exist without C++.
167 128
190 /lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000) 151 /lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
191 152
192 No large bloated libraries (of course, none were linked in statically), 153 No large bloated libraries (of course, none were linked in statically),
193 except maybe libX11 :) 154 except maybe libX11 :)
194 155
195 Does it support tabs, can I have a tabbed rxvt-unicode? 156 Rendering, Font & Look and Feel Issues
196 Beginning with version 7.3, there is a perl extension that implements a 157 I can't get transparency working, what am I doing wrong?
197 simple tabbed terminal. It is installed by default, so any of these 158 First of all, transparency isn't officially supported in rxvt-unicode,
198 should give you tabs: 159 so you are mostly on your own. Do not bug the author about it (but you
160 may bug everybody else). Also, if you can't get it working consider it a
161 rite of passage: ... and you failed.
199 162
200 rxvt -pe tabbed 163 Here are four ways to get transparency. Do read the manpage and option
164 descriptions for the programs mentioned and rxvt-unicode. Really, do it!
201 165
166 1. Use inheritPixmap:
167
168 Esetroot wallpaper.jpg
169 urxvt -ip -tint red -sh 40
170
171 That works. If you think it doesn't, you lack transparency and tinting
172 support, or you are unable to read.
173
174 2. Use a simple pixmap and emulate pseudo-transparency. This enables you
175 to use effects other than tinting and shading: Just shade/tint/whatever
176 your picture with gimp or any other tool:
177
178 convert wallpaper.jpg -blur 20x20 -modulate 30 background.xpm
179 urxvt -pixmap background.xpm -pe automove-background
180
181 That works. If you think it doesn't, you lack XPM and Perl support, or
182 you are unable to read.
183
184 3. Use an ARGB visual:
185
186 urxvt -depth 32 -fg grey90 -bg rgba:0000/0000/4444/cccc
187
188 This requires XFT support, and the support of your X-server. If that
189 doesn't work for you, blame Xorg and Keith Packard. ARGB visuals aren't
190 there yet, no matter what they claim. Rxvt-Unicode contains the
191 neccessary bugfixes and workarounds for Xft and Xlib to make it work,
192 but that doesn't mean that your WM has the required kludges in place.
193
194 4. Use xcompmgr and let it do the job:
195
196 xprop -frame -f _NET_WM_WINDOW_OPACITY 32c \
197 -set _NET_WM_WINDOW_OPACITY 0xc0000000
198
199 Then click on a window you want to make transparent. Replace 0xc0000000
200 by other values to change the degree of opacity. If it doesn't work and
201 your server crashes, you got to keep the pieces.
202
203 Why do some chinese characters look so different than others?
204 This is because there is a difference between script and language --
205 rxvt-unicode does not know which language the text that is output is, as
206 it only knows the unicode character codes. If rxvt-unicode first sees a
207 japanese/chinese character, it might choose a japanese font for display.
208 Subsequent japanese characters will use that font. Now, many chinese
209 characters aren't represented in japanese fonts, so when the first
210 non-japanese character comes up, rxvt-unicode will look for a chinese
211 font -- unfortunately at this point, it will still use the japanese font
212 for chinese characters that are also in the japanese font.
213
214 The workaround is easy: just tag a chinese font at the end of your font
215 list (see the previous question). The key is to view the font list as a
216 preference list: If you expect more japanese, list a japanese font
217 first. If you expect more chinese, put a chinese font first.
218
219 In the future it might be possible to switch language preferences at
220 runtime (the internal data structure has no problem with using different
221 fonts for the same character at the same time, but no interface for this
222 has been designed yet).
223
224 Until then, you might get away with switching fonts at runtime (see "Can
225 I switch the fonts at runtime?" later in this document).
226
227 Why does rxvt-unicode sometimes leave pixel droppings?
228 Most fonts were not designed for terminal use, which means that
229 character size varies a lot. A font that is otherwise fine for terminal
230 use might contain some characters that are simply too wide. Rxvt-unicode
231 will avoid these characters. For characters that are just "a bit" too
232 wide a special "careful" rendering mode is used that redraws adjacent
233 characters.
234
235 All of this requires that fonts do not lie about character sizes,
236 however: Xft fonts often draw glyphs larger than their acclaimed
237 bounding box, and rxvt-unicode has no way of detecting this (the correct
238 way is to ask for the character bounding box, which unfortunately is
239 wrong in these cases).
240
241 It's not clear (to me at least), wether this is a bug in Xft, freetype,
242 or the respective font. If you encounter this problem you might try
243 using the "-lsp" option to give the font more height. If that doesn't
244 work, you might be forced to use a different font.
245
246 All of this is not a problem when using X11 core fonts, as their
247 bounding box data is correct.
248
249 How can I keep rxvt-unicode from using reverse video so much?
250 First of all, make sure you are running with the right terminal settings
251 ("TERM=rxvt-unicode"), which will get rid of most of these effects. Then
252 make sure you have specified colours for italic and bold, as otherwise
253 rxvt-unicode might use reverse video to simulate the effect:
254
255 URxvt.colorBD: white
256 URxvt.colorIT: green
257
258 Some programs assume totally weird colours (red instead of blue), how can I fix that?
259 For some unexplainable reason, some rare programs assume a very weird
260 colour palette when confronted with a terminal with more than the
261 standard 8 colours (rxvt-unicode supports 88). The right fix is, of
262 course, to fix these programs not to assume non-ISO colours without very
263 good reasons.
264
265 In the meantime, you can either edit your "rxvt-unicode" terminfo
266 definition to only claim 8 colour support or use "TERM=rxvt", which will
267 fix colours but keep you from using other rxvt-unicode features.
268
269 Can I switch the fonts at runtime?
270 Yes, using an escape sequence. Try something like this, which has the
271 same effect as using the "-fn" switch, and takes effect immediately:
272
273 printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic"
274
275 This is useful if you e.g. work primarily with japanese (and prefer a
276 japanese font), but you have to switch to chinese temporarily, where
277 japanese fonts would only be in your way.
278
279 You can think of this as a kind of manual ISO-2022 switching.
280
281 Why do italic characters look as if clipped?
282 Many fonts have difficulties with italic characters and hinting. For
283 example, the otherwise very nicely hinted font "xft:Bitstream Vera Sans
284 Mono" completely fails in it's italic face. A workaround might be to
285 enable freetype autohinting, i.e. like this:
286
287 URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
288 URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
289
290 Can I speed up Xft rendering somehow?
291 Yes, the most obvious way to speed it up is to avoid Xft entirely, as it
292 is simply slow. If you still want Xft fonts you might try to disable
293 antialiasing (by appending ":antialias=false"), which saves lots of
294 memory and also speeds up rendering considerably.
295
296 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
297 Rxvt-unicode will use whatever you specify as a font. If it needs to
298 fall back to it's default font search list it will prefer X11 core
299 fonts, because they are small and fast, and then use Xft fonts. It has
300 antialiasing disabled for most of them, because the author thinks they
301 look best that way.
302
303 If you want antialiasing, you have to specify the fonts manually.
304
305 What's with this bold/blink stuff?
306 If no bold colour is set via "colorBD:", bold will invert text using the
307 standard foreground colour.
308
309 For the standard background colour, blinking will actually make the text
310 blink when compiled with "--enable-blinking". with standard colours.
311 Without "--enable-blinking", the blink attribute will be ignored.
312
313 On ANSI colours, bold/blink attributes are used to set high-intensity
314 foreground/background colors.
315
316 color0-7 are the low-intensity colors.
317
318 color8-15 are the corresponding high-intensity colors.
319
320 I don't like the screen colors. How do I change them?
321 You can change the screen colors at run-time using ~/.Xdefaults
322 resources (or as long-options).
323
324 Here are values that are supposed to resemble a VGA screen, including
325 the murky brown that passes for low-intensity yellow:
326
327 URxvt.color0: #000000
328 URxvt.color1: #A80000
329 URxvt.color2: #00A800
330 URxvt.color3: #A8A800
331 URxvt.color4: #0000A8
332 URxvt.color5: #A800A8
333 URxvt.color6: #00A8A8
334 URxvt.color7: #A8A8A8
335
336 URxvt.color8: #000054
337 URxvt.color9: #FF0054
338 URxvt.color10: #00FF54
339 URxvt.color11: #FFFF54
340 URxvt.color12: #0000FF
341 URxvt.color13: #FF00FF
342 URxvt.color14: #00FFFF
343 URxvt.color15: #FFFFFF
344
345 And here is a more complete set of non-standard colors described (not by
346 me) as "pretty girly".
347
348 URxvt.cursorColor: #dc74d1
349 URxvt.pointerColor: #dc74d1
350 URxvt.background: #0e0e0e
351 URxvt.foreground: #4ad5e1
352 URxvt.color0: #000000
353 URxvt.color8: #8b8f93
354 URxvt.color1: #dc74d1
355 URxvt.color9: #dc74d1
356 URxvt.color2: #0eb8c7
357 URxvt.color10: #0eb8c7
358 URxvt.color3: #dfe37e
359 URxvt.color11: #dfe37e
360 URxvt.color5: #9e88f0
361 URxvt.color13: #9e88f0
362 URxvt.color6: #73f7ff
363 URxvt.color14: #73f7ff
364 URxvt.color7: #e1dddd
365 URxvt.color15: #e1dddd
366
367 Why do some characters look so much different than others?
368 See next entry.
369
370 How does rxvt-unicode choose fonts?
371 Most fonts do not contain the full range of Unicode, which is fine.
372 Chances are that the font you (or the admin/package maintainer of your
373 system/os) have specified does not cover all the characters you want to
374 display.
375
376 rxvt-unicode makes a best-effort try at finding a replacement font.
377 Often the result is fine, but sometimes the chosen font looks
378 bad/ugly/wrong. Some fonts have totally strange characters that don't
379 resemble the correct glyph at all, and rxvt-unicode lacks the artificial
380 intelligence to detect that a specific glyph is wrong: it has to believe
381 the font that the characters it claims to contain indeed look correct.
382
383 In that case, select a font of your taste and add it to the font list,
384 e.g.:
385
386 urxvt -fn basefont,font2,font3...
387
388 When rxvt-unicode sees a character, it will first look at the base font.
389 If the base font does not contain the character, it will go to the next
390 font, and so on. Specifying your own fonts will also speed up this
391 search and use less resources within rxvt-unicode and the X-server.
392
393 The only limitation is that none of the fonts may be larger than the
394 base font, as the base font defines the terminal character cell size,
395 which must be the same due to the way terminals work.
396
397 Keyboard, Mouse & User Interaction
398 The new selection selects pieces that are too big, how can I select single words?
399 If you want to select e.g. alphanumeric words, you can use the following
400 setting:
401
402 URxvt.selection.pattern-0: ([[:word:]]+)
403
404 If you click more than twice, the selection will be extended more and
405 more.
406
407 To get a selection that is very similar to the old code, try this
408 pattern:
409
410 URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+)
411
412 Please also note that the *LeftClick Shift-LeftClik* combination also
413 selects words like the old code.
414
415 I don't like the new selection/popups/hotkeys/perl, how do I change/disable it?
416 You can disable the perl extension completely by setting the
417 perl-ext-common resource to the empty string, which also keeps
418 rxvt-unicode from initialising perl, saving memory.
419
420 If you only want to disable specific features, you first have to
421 identify which perl extension is responsible. For this, read the section
422 PREPACKAGED EXTENSIONS in the urxvtperl(3) manpage. For example, to
423 disable the selection-popup and option-popup, specify this
424 perl-ext-common resource:
425
426 URxvt.perl-ext-common: default,-selection-popup,-option-popup
427
428 This will keep the default extensions, but disable the two popup
429 extensions. Some extensions can also be configured, for example,
430 scrollback search mode is triggered by M-s. You can move it to any other
431 combination either by setting the searchable-scrollback resource:
432
433 URxvt.searchable-scrollback: CM-s
434
435 The cursor moves when selecting text in the current input line, how do I switch this off?
436 See next entry.
437
438 During rlogin/ssh/telnet/etc. sessions, clicking near the cursor outputs strange escape sequences, how do I fix this?
439 These are caused by the "readline" perl extension. Under normal
440 circumstances, it will move your cursor around when you click into the
441 line that contains it. It tries hard not to do this at the wrong moment,
442 but when running a program that doesn't parse cursor movements or in
443 some cases during rlogin sessions, it fails to detect this properly.
444
445 You can permamently switch this feature off by disabling the "readline"
446 extension:
447
202 URxvt.perl-ext-common: default,tabbed 448 URxvt.perl-ext-common: default,-readline
203 449
204 It will also work fine with tabbing functionality of many window 450 My numerical keypad acts weird and generates differing output?
205 managers or similar tabbing programs, and its embedding-features allow 451 Some Debian GNUL/Linux users seem to have this problem, although no
206 it to be embedded into other programs, as witnessed by doc/rxvt-tabbed 452 specific details were reported so far. It is possible that this is
207 or the upcoming "Gtk2::URxvt" perl module, which features a tabbed urxvt 453 caused by the wrong "TERM" setting, although the details of wether and
208 (murxvt) terminal as an example embedding application. 454 how this can happen are unknown, as "TERM=rxvt" should offer a
455 compatible keymap. See the answer to the previous question, and please
456 report if that helped.
209 457
210 How do I know which rxvt-unicode version I'm using? 458 My Compose (Multi_key) key is no longer working.
211 The version number is displayed with the usage (-h). Also the escape 459 The most common causes for this are that either your locale is not set
212 sequence "ESC [ 8 n" sets the window title to the version number. When 460 correctly, or you specified a preeditStyle that is not supported by your
213 using the rxvtc client, the version displayed is that of the daemon. 461 input method. For example, if you specified OverTheSpot and your input
462 method (e.g. the default input method handling Compose keys) does not
463 support this (for instance because it is not visual), then rxvt-unicode
464 will continue without an input method.
214 465
215 I am using Debian GNU/Linux and have a problem... 466 In this case either do not specify a preeditStyle or specify more than
216 The Debian GNU/Linux package of rxvt-unicode in sarge contains large 467 one pre-edit style, such as OverTheSpot,Root,None.
217 patches that considerably change the behaviour of rxvt-unicode (but
218 unfortunately this notice has been removed). Before reporting a bug to
219 the original rxvt-unicode author please download and install the genuine
220 version (<http://software.schmorp.de#rxvt-unicode>) and try to reproduce
221 the problem. If you cannot, chances are that the problems are specific
222 to Debian GNU/Linux, in which case it should be reported via the Debian
223 Bug Tracking System (use "reportbug" to report the bug).
224 468
225 For other problems that also affect the Debian package, you can and 469 I cannot type "Ctrl-Shift-2" to get an ASCII NUL character due to ISO 14755
226 probably should use the Debian BTS, too, because, after all, it's also a 470 Either try "Ctrl-2" alone (it often is mapped to ASCII NUL even on
227 bug in the Debian version and it serves as a reminder for other users 471 international keyboards) or simply use ISO 14755 support to your
228 that might encounter the same issue. 472 advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for
473 other codes, too, such as "Ctrl-Shift-1-d" to type the default telnet
474 escape character and so on.
229 475
230 I am maintaining rxvt-unicode for distribution/OS XXX, any 476 Mouse cut/paste suddenly no longer works.
231recommendation? 477 Make sure that mouse reporting is actually turned off since killing some
232 You should build one binary with the default options. configure now 478 editors prematurely may leave the mouse in mouse report mode. I've heard
233 enables most useful options, and the trend goes to making them 479 that tcsh may use mouse reporting unless it otherwise specified. A quick
234 runtime-switchable, too, so there is usually no drawback to enbaling 480 check is to see if cut/paste works when the Alt or Shift keys are
235 them, except higher disk and possibly memory usage. The perl interpreter 481 depressed.
236 should be enabled, as important functionality (menus, selection, likely
237 more in the future) depends on it.
238 482
239 You should not overwrite the "perl-ext-common" snd "perl-ext" resources 483 What's with the strange Backspace/Delete key behaviour?
240 system-wide (except maybe with "defaults"). This will result in useful 484 Assuming that the physical Backspace key corresponds to the BackSpace
241 behaviour. If your distribution aims at low memory, add an empty 485 keysym (not likely for Linux ... see the following question) there are
242 "perl-ext-common" resource to the app-defaults file. This will keep the 486 two standard values that can be used for Backspace: "^H" and "^?".
243 perl interpreter disabled until the user enables it.
244 487
245 If you can/want build more binaries, I recommend building a minimal one 488 Historically, either value is correct, but rxvt-unicode adopts the
246 with "--disable-everything" (very useful) and a maximal one with 489 debian policy of using "^?" when unsure, because it's the one only only
247 "--enable-everything" (less useful, it will be very big due to a lot of 490 correct choice :).
248 encodings built-in that increase download times and are rarely used).
249 491
250 I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe? 492 Rxvt-unicode tries to inherit the current stty settings and uses the
251 It should be, starting with release 7.1. You are encouraged to properly 493 value of `erase' to guess the value for backspace. If rxvt-unicode
252 install urxvt with privileges necessary for your OS now. 494 wasn't started from a terminal (say, from a menu or by remote shell),
495 then the system value of `erase', which corresponds to CERASE in
496 <termios.h>, will be used (which may not be the same as your stty
497 setting).
253 498
254 When rxvt-unicode detects that it runs setuid or setgid, it will fork 499 For starting a new rxvt-unicode:
255 into a helper process for privileged operations (pty handling on some
256 systems, utmp/wtmp/lastlog handling on others) and drop privileges
257 immediately. This is much safer than most other terminals that keep
258 privileges while running (but is more relevant to urxvt, as it contains
259 things as perl interpreters, which might be "helpful" to attackers).
260 500
261 This forking is done as the very first within main(), which is very 501 # use Backspace = ^H
262 early and reduces possible bugs to initialisation code run before 502 $ stty erase ^H
263 main(), or things like the dynamic loader of your system, which should 503 $ urxvt
264 result in very little risk.
265 504
505 # use Backspace = ^?
506 $ stty erase ^?
507 $ urxvt
508
509 Toggle with "ESC [ 36 h" / "ESC [ 36 l".
510
511 For an existing rxvt-unicode:
512
513 # use Backspace = ^H
514 $ stty erase ^H
515 $ echo -n "^[[36h"
516
517 # use Backspace = ^?
518 $ stty erase ^?
519 $ echo -n "^[[36l"
520
521 This helps satisfy some of the Backspace discrepancies that occur, but
522 if you use Backspace = "^H", make sure that the termcap/terminfo value
523 properly reflects that.
524
525 The Delete key is a another casualty of the ill-defined Backspace
526 problem. To avoid confusion between the Backspace and Delete keys, the
527 Delete key has been assigned an escape sequence to match the vt100 for
528 Execute ("ESC [ 3 ~") and is in the supplied termcap/terminfo.
529
530 Some other Backspace problems:
531
532 some editors use termcap/terminfo, some editors (vim I'm told) expect
533 Backspace = ^H, GNU Emacs (and Emacs-like editors) use ^H for help.
534
535 Perhaps someday this will all be resolved in a consistent manner.
536
537 I don't like the key-bindings. How do I change them?
538 There are some compile-time selections available via configure. Unless
539 you have run "configure" with the "--disable-resources" option you can
540 use the `keysym' resource to alter the keystrings associated with
541 keysyms.
542
543 Here's an example for a URxvt session started using "urxvt -name URxvt"
544
545 URxvt.keysym.Home: \033[1~
546 URxvt.keysym.End: \033[4~
547 URxvt.keysym.C-apostrophe: \033<C-'>
548 URxvt.keysym.C-slash: \033<C-/>
549 URxvt.keysym.C-semicolon: \033<C-;>
550 URxvt.keysym.C-grave: \033<C-`>
551 URxvt.keysym.C-comma: \033<C-,>
552 URxvt.keysym.C-period: \033<C-.>
553 URxvt.keysym.C-0x60: \033<C-`>
554 URxvt.keysym.C-Tab: \033<C-Tab>
555 URxvt.keysym.C-Return: \033<C-Return>
556 URxvt.keysym.S-Return: \033<S-Return>
557 URxvt.keysym.S-space: \033<S-Space>
558 URxvt.keysym.M-Up: \033<M-Up>
559 URxvt.keysym.M-Down: \033<M-Down>
560 URxvt.keysym.M-Left: \033<M-Left>
561 URxvt.keysym.M-Right: \033<M-Right>
562 URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
563 URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
564 URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
565
566 See some more examples in the documentation for the keysym resource.
567
568 I'm using keyboard model XXX that has extra Prior/Next/Insert keys. How do I make use of them? For example, the Sun Keyboard type 4 has the following map
569 KP_Insert == Insert
570 F22 == Print
571 F27 == Home
572 F29 == Prior
573 F33 == End
574 F35 == Next
575
576 Rather than have rxvt-unicode try to accommodate all the various
577 possible keyboard mappings, it is better to use `xmodmap' to remap the
578 keys as required for your particular machine.
579
580 Terminal Configuration
581 Why doesn't rxvt-unicode read my resources?
582 Well, why, indeed? It does, in a way very similar to other X
583 applications. Most importantly, this means that if you or your OS loads
584 resources into the X display (the right way to do it), rxvt-unicode will
585 ignore any resource files in your home directory. It will only read
586 $HOME/.Xdefaults when no resources are attached to the display.
587
588 If you have or use an $HOME/.Xresources file, chances are that resources
589 are loaded into your X-server. In this case, you have to re-login after
590 every change (or run xrdb -merge $HOME/.Xresources).
591
592 Also consider the form resources have to use:
593
594 URxvt.resource: value
595
596 If you want to use another form (there are lots of different ways of
597 specifying resources), make sure you understand wether and why it works.
598 If unsure, use the form above.
599
266 When I log-in to another system it tells me about missing terminfo data? 600 When I log-in to another system it tells me about missing terminfo data?
267 The terminal description used by rxvt-unicode is not as widely available 601 The terminal description used by rxvt-unicode is not as widely available
268 as that for xterm, or even rxvt (for which the same problem often 602 as that for xterm, or even rxvt (for which the same problem often
269 arises). 603 arises).
270 604
271 The correct solution for this problem is to install the terminfo, this 605 The correct solution for this problem is to install the terminfo, this
289 URxvt.termName: rxvt 623 URxvt.termName: rxvt
290 624
291 If you don't plan to use rxvt (quite common...) you could also replace 625 If you don't plan to use rxvt (quite common...) you could also replace
292 the rxvt terminfo file with the rxvt-unicode one. 626 the rxvt terminfo file with the rxvt-unicode one.
293 627
294 "tic" outputs some error when compiling the terminfo entry. 628 "tic" outputs some error when compiling the terminfo entry.
295 Most likely it's the empty definition for "enacs=". Just replace it by 629 Most likely it's the empty definition for "enacs=". Just replace it by
296 "enacs=\E[0@" and try again. 630 "enacs=\E[0@" and try again.
297 631
298 "bash"'s readline does not work correctly under rxvt. 632 "bash"'s readline does not work correctly under urxvt.
633 See next entry.
634
299 I need a termcap file entry. 635 I need a termcap file entry.
300 One reason you might want this is that some distributions or operating 636 One reason you might want this is that some distributions or operating
301 systems still compile some programs using the long-obsoleted termcap 637 systems still compile some programs using the long-obsoleted termcap
302 library (Fedora Core's bash is one example) and rely on a termcap entry 638 library (Fedora Core's bash is one example) and rely on a termcap entry
303 for "rxvt-unicode". 639 for "rxvt-unicode".
304 640
329 :sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\ 665 :sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
330 :te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\ 666 :te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\
331 :us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\ 667 :us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\
332 :vs=\E[?25h: 668 :vs=\E[?25h:
333 669
334 Why does "ls" no longer have coloured output? 670 Why does "ls" no longer have coloured output?
335 The "ls" in the GNU coreutils unfortunately doesn't use terminfo to 671 The "ls" in the GNU coreutils unfortunately doesn't use terminfo to
336 decide wether a terminal has colour, but uses it's own configuration 672 decide wether a terminal has colour, but uses it's own configuration
337 file. Needless to say, "rxvt-unicode" is not in it's default file (among 673 file. Needless to say, "rxvt-unicode" is not in it's default file (among
338 with most other terminals supporting colour). Either add: 674 with most other terminals supporting colour). Either add:
339 675
343 679
344 alias ls='ls --color=auto' 680 alias ls='ls --color=auto'
345 681
346 to your ".profile" or ".bashrc". 682 to your ".profile" or ".bashrc".
347 683
348 Why doesn't vim/emacs etc. use the 88 colour mode? 684 Why doesn't vim/emacs etc. use the 88 colour mode?
685 See next entry.
686
349 Why doesn't vim/emacs etc. make use of italic? 687 Why doesn't vim/emacs etc. make use of italic?
688 See next entry.
689
350 Why are the secondary screen-related options not working properly? 690 Why are the secondary screen-related options not working properly?
351 Make sure you are using "TERM=rxvt-unicode". Some pre-packaged 691 Make sure you are using "TERM=rxvt-unicode". Some pre-packaged
352 distributions (most notably Debian GNU/Linux) break rxvt-unicode by 692 distributions (most notably Debian GNU/Linux) break rxvt-unicode by
353 setting "TERM" to "rxvt", which doesn't have these extra features. 693 setting "TERM" to "rxvt", which doesn't have these extra features.
354 Unfortunately, some of these (most notably, again, Debian GNU/Linux) 694 Unfortunately, some of these (most notably, again, Debian GNU/Linux)
355 furthermore fail to even install the "rxvt-unicode" terminfo file, so 695 furthermore fail to even install the "rxvt-unicode" terminfo file, so
356 you will need to install it on your own (See the question When I log-in 696 you will need to install it on your own (See the question When I log-in
357 to another system it tells me about missing terminfo data? on how to do 697 to another system it tells me about missing terminfo data? on how to do
358 this). 698 this).
359 699
360 My numerical keypad acts weird and generates differing output? 700 Encoding / Locale / Input Method Issues
361 Some Debian GNUL/Linux users seem to have this problem, although no
362 specific details were reported so far. It is possible that this is
363 caused by the wrong "TERM" setting, although the details of wether and
364 how this can happen are unknown, as "TERM=rxvt" should offer a
365 compatible keymap. See the answer to the previous question, and please
366 report if that helped.
367
368 Rxvt-unicode does not seem to understand the selected encoding? 701 Rxvt-unicode does not seem to understand the selected encoding?
702 See next entry.
703
369 Unicode does not seem to work? 704 Unicode does not seem to work?
370 If you encounter strange problems like typing an accented character but 705 If you encounter strange problems like typing an accented character but
371 getting two unrelated other characters or similar, or if program output 706 getting two unrelated other characters or similar, or if program output
372 is subtly garbled, then you should check your locale settings. 707 is subtly garbled, then you should check your locale settings.
373 708
374 Rxvt-unicode must be started with the same "LC_CTYPE" setting as the 709 Rxvt-unicode must be started with the same "LC_CTYPE" setting as the
395 730
396 If nothing works and you are sure that everything is set correctly then 731 If nothing works and you are sure that everything is set correctly then
397 you will need to remember a little known fact: Some programs just don't 732 you will need to remember a little known fact: Some programs just don't
398 support locales :( 733 support locales :(
399 734
400 Why do some characters look so much different than others? 735 How does rxvt-unicode determine the encoding to use?
401 How does rxvt-unicode choose fonts? 736 See next entry.
402 Most fonts do not contain the full range of Unicode, which is fine.
403 Chances are that the font you (or the admin/package maintainer of your
404 system/os) have specified does not cover all the characters you want to
405 display.
406 737
407 rxvt-unicode makes a best-effort try at finding a replacement font. 738 Is there an option to switch encodings?
408 Often the result is fine, but sometimes the chosen font looks 739 Unlike some other terminals, rxvt-unicode has no encoding switch, and no
409 bad/ugly/wrong. Some fonts have totally strange characters that don't 740 specific "utf-8" mode, such as xterm. In fact, it doesn't even know
410 resemble the correct glyph at all, and rxvt-unicode lacks the artificial 741 about UTF-8 or any other encodings with respect to terminal I/O.
411 intelligence to detect that a specific glyph is wrong: it has to believe
412 the font that the characters it claims to contain indeed look correct.
413 742
414 In that case, select a font of your taste and add it to the font list, 743 The reasons is that there exists a perfectly fine mechanism for
415 e.g.: 744 selecting the encoding, doing I/O and (most important) communicating
745 this to all applications so everybody agrees on character properties
746 such as width and code number. This mechanism is the *locale*.
747 Applications not using that info will have problems (for example,
748 "xterm" gets the width of characters wrong as it uses it's own,
749 locale-independent table under all locales).
416 750
417 rxvt -fn basefont,font2,font3... 751 Rxvt-unicode uses the "LC_CTYPE" locale category to select encoding. All
752 programs doing the same (that is, most) will automatically agree in the
753 interpretation of characters.
418 754
419 When rxvt-unicode sees a character, it will first look at the base font. 755 Unfortunately, there is no system-independent way to select locales, nor
420 If the base font does not contain the character, it will go to the next 756 is there a standard on how locale specifiers will look like.
421 font, and so on. Specifying your own fonts will also speed up this
422 search and use less resources within rxvt-unicode and the X-server.
423 757
424 The only limitation is that none of the fonts may be larger than the 758 On most systems, the content of the "LC_CTYPE" environment variable
425 base font, as the base font defines the terminal character cell size, 759 contains an arbitrary string which corresponds to an already-installed
426 which must be the same due to the way terminals work. 760 locale. Common names for locales are "en_US.UTF-8", "de_DE.ISO-8859-15",
761 "ja_JP.EUC-JP", i.e. "language_country.encoding", but other forms (i.e.
762 "de" or "german") are also common.
427 763
428 Why do some chinese characters look so different than others? 764 Rxvt-unicode ignores all other locale categories, and except for the
429 This is because there is a difference between script and language -- 765 encoding, ignores country or language-specific settings, i.e.
430 rxvt-unicode does not know which language the text that is output is, as 766 "de_DE.UTF-8" and "ja_JP.UTF-8" are the normally same to rxvt-unicode.
431 it only knows the unicode character codes. If rxvt-unicode first sees a
432 japanese/chinese character, it might choose a japanese font for display.
433 Subsequent japanese characters will use that font. Now, many chinese
434 characters aren't represented in japanese fonts, so when the first
435 non-japanese character comes up, rxvt-unicode will look for a chinese
436 font -- unfortunately at this point, it will still use the japanese font
437 for chinese characters that are also in the japanese font.
438 767
439 The workaround is easy: just tag a chinese font at the end of your font 768 If you want to use a specific encoding you have to make sure you start
440 list (see the previous question). The key is to view the font list as a 769 rxvt-unicode with the correct "LC_CTYPE" category.
441 preference list: If you expect more japanese, list a japanese font
442 first. If you expect more chinese, put a chinese font first.
443 770
444 In the future it might be possible to switch language preferences at 771 Can I switch locales at runtime?
445 runtime (the internal data structure has no problem with using different 772 Yes, using an escape sequence. Try something like this, which sets
446 fonts for the same character at the same time, but no interface for this 773 rxvt-unicode's idea of "LC_CTYPE".
447 has been designed yet).
448 774
449 Until then, you might get away with switching fonts at runtime (see "Can 775 printf '\e]701;%s\007' ja_JP.SJIS
450 I switch the fonts at runtime?" later in this document).
451 776
452 Why does rxvt-unicode sometimes leave pixel droppings? 777 See also the previous answer.
453 Most fonts were not designed for terminal use, which means that
454 character size varies a lot. A font that is otherwise fine for terminal
455 use might contain some characters that are simply too wide. Rxvt-unicode
456 will avoid these characters. For characters that are just "a bit" too
457 wide a special "careful" rendering mode is used that redraws adjacent
458 characters.
459 778
460 All of this requires that fonts do not lie about character sizes, 779 Sometimes this capability is rather handy when you want to work in one
461 however: Xft fonts often draw glyphs larger than their acclaimed 780 locale (e.g. "de_DE.UTF-8") but some programs don't support it (e.g.
462 bounding box, and rxvt-unicode has no way of detecting this (the correct 781 UTF-8). For example, I use this script to start "xjdic", which first
463 way is to ask for the character bounding box, which unfortunately is 782 switches to a locale supported by xjdic and back later:
464 wrong in these cases).
465 783
466 It's not clear (to me at least), wether this is a bug in Xft, freetype, 784 printf '\e]701;%s\007' ja_JP.SJIS
467 or the respective font. If you encounter this problem you might try 785 xjdic -js
468 using the "-lsp" option to give the font more height. If that doesn't 786 printf '\e]701;%s\007' de_DE.UTF-8
469 work, you might be forced to use a different font.
470 787
471 All of this is not a problem when using X11 core fonts, as their 788 You can also use xterm's "luit" program, which usually works fine,
472 bounding box data is correct. 789 except for some locales where character width differs between program-
790 and rxvt-unicode-locales.
473 791
792 My input method wants <some encoding> but I want UTF-8, what can I do?
793 You can specify separate locales for the input method and the rest of
794 the terminal, using the resource "imlocale":
795
796 URxvt.imlocale: ja_JP.EUC-JP
797
798 Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and still
799 use your input method. Please note, however, that you will not be able
800 to input characters outside "EUC-JP" in a normal way then, as your input
801 method limits you.
802
803 Rxvt-unicode crashes when the X Input Method changes or exits.
804 Unfortunately, this is unavoidable, as the XIM protocol is racy by
805 design. Applications can avoid some crashes at the expense of memory
806 leaks, and Input Methods can avoid some crashes by careful ordering at
807 exit time. kinput2 (and derived input methods) generally succeeds, while
808 SCIM (or similar input methods) fails. In the end, however, crashes
809 cannot be completely avoided even if both sides cooperate.
810
811 So the only workaround is not to kill your Input Method Servers.
812
813 Operating Systems / Package Maintaining
814 I am using Debian GNU/Linux and have a problem...
815 The Debian GNU/Linux package of rxvt-unicode in sarge contains large
816 patches that considerably change the behaviour of rxvt-unicode (but
817 unfortunately this notice has been removed). Before reporting a bug to
818 the original rxvt-unicode author please download and install the genuine
819 version (<http://software.schmorp.de#rxvt-unicode>) and try to reproduce
820 the problem. If you cannot, chances are that the problems are specific
821 to Debian GNU/Linux, in which case it should be reported via the Debian
822 Bug Tracking System (use "reportbug" to report the bug).
823
824 For other problems that also affect the Debian package, you can and
825 probably should use the Debian BTS, too, because, after all, it's also a
826 bug in the Debian version and it serves as a reminder for other users
827 that might encounter the same issue.
828
829 I am maintaining rxvt-unicode for distribution/OS XXX, any recommendation?
830 You should build one binary with the default options. configure now
831 enables most useful options, and the trend goes to making them
832 runtime-switchable, too, so there is usually no drawback to enbaling
833 them, except higher disk and possibly memory usage. The perl interpreter
834 should be enabled, as important functionality (menus, selection, likely
835 more in the future) depends on it.
836
837 You should not overwrite the "perl-ext-common" snd "perl-ext" resources
838 system-wide (except maybe with "defaults"). This will result in useful
839 behaviour. If your distribution aims at low memory, add an empty
840 "perl-ext-common" resource to the app-defaults file. This will keep the
841 perl interpreter disabled until the user enables it.
842
843 If you can/want build more binaries, I recommend building a minimal one
844 with "--disable-everything" (very useful) and a maximal one with
845 "--enable-everything" (less useful, it will be very big due to a lot of
846 encodings built-in that increase download times and are rarely used).
847
848 I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe?
849 It should be, starting with release 7.1. You are encouraged to properly
850 install urxvt with privileges necessary for your OS now.
851
852 When rxvt-unicode detects that it runs setuid or setgid, it will fork
853 into a helper process for privileged operations (pty handling on some
854 systems, utmp/wtmp/lastlog handling on others) and drop privileges
855 immediately. This is much safer than most other terminals that keep
856 privileges while running (but is more relevant to urxvt, as it contains
857 things as perl interpreters, which might be "helpful" to attackers).
858
859 This forking is done as the very first within main(), which is very
860 early and reduces possible bugs to initialisation code run before
861 main(), or things like the dynamic loader of your system, which should
862 result in very little risk.
863
474 On Solaris 9, many line-drawing characters are too wide. 864 On Solaris 9, many line-drawing characters are too wide.
475 Seems to be a known bug, read 865 Seems to be a known bug, read
476 <http://nixdoc.net/files/forum/about34198.html>. Some people use the 866 <http://nixdoc.net/files/forum/about34198.html>. Some people use the
477 following ugly workaround to get non-double-wide-characters working: 867 following ugly workaround to get non-double-wide-characters working:
478 868
479 #define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x) 869 #define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)
480 870
481 My Compose (Multi_key) key is no longer working.
482 The most common causes for this are that either your locale is not set
483 correctly, or you specified a preeditStyle that is not supported by your
484 input method. For example, if you specified OverTheSpot and your input
485 method (e.g. the default input method handling Compose keys) does not
486 support this (for instance because it is not visual), then rxvt-unicode
487 will continue without an input method.
488
489 In this case either do not specify a preeditStyle or specify more than
490 one pre-edit style, such as OverTheSpot,Root,None.
491
492 I cannot type "Ctrl-Shift-2" to get an ASCII NUL character due to ISO 14755
493 Either try "Ctrl-2" alone (it often is mapped to ASCII NUL even on
494 international keyboards) or simply use ISO 14755 support to your
495 advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for
496 other codes, too, such as "Ctrl-Shift-1-d" to type the default telnet
497 escape character and so on.
498
499 How can I keep rxvt-unicode from using reverse video so much?
500 First of all, make sure you are running with the right terminal settings
501 ("TERM=rxvt-unicode"), which will get rid of most of these effects. Then
502 make sure you have specified colours for italic and bold, as otherwise
503 rxvt-unicode might use reverse video to simulate the effect:
504
505 URxvt.colorBD: white
506 URxvt.colorIT: green
507
508 Some programs assume totally weird colours (red instead of blue), how can I fix that?
509 For some unexplainable reason, some rare programs assume a very weird
510 colour palette when confronted with a terminal with more than the
511 standard 8 colours (rxvt-unicode supports 88). The right fix is, of
512 course, to fix these programs not to assume non-ISO colours without very
513 good reasons.
514
515 In the meantime, you can either edit your "rxvt-unicode" terminfo
516 definition to only claim 8 colour support or use "TERM=rxvt", which will
517 fix colours but keep you from using other rxvt-unicode features.
518
519 I am on FreeBSD and rxvt-unicode does not seem to work at all. 871 I am on FreeBSD and rxvt-unicode does not seem to work at all.
520 Rxvt-unicode requires the symbol "__STDC_ISO_10646__" to be defined in 872 Rxvt-unicode requires the symbol "__STDC_ISO_10646__" to be defined in
521 your compile environment, or an implementation that implements it, 873 your compile environment, or an implementation that implements it,
522 wether it defines the symbol or not. "__STDC_ISO_10646__" requires that 874 wether it defines the symbol or not. "__STDC_ISO_10646__" requires that
523 wchar_t is represented as unicode. 875 wchar_t is represented as unicode.
524 876
545 897
546 The rxvt-unicode author insists that the right way to fix this is in the 898 The rxvt-unicode author insists that the right way to fix this is in the
547 system libraries once and for all, instead of forcing every app to carry 899 system libraries once and for all, instead of forcing every app to carry
548 complete replacements for them :) 900 complete replacements for them :)
549 901
550 I use Solaris 9 and it doesn't compile/work/etc. 902 I use Solaris 9 and it doesn't compile/work/etc.
551 Try the diff in doc/solaris9.patch as a base. It fixes the worst 903 Try the diff in doc/solaris9.patch as a base. It fixes the worst
552 problems with "wcwidth" and a compile problem. 904 problems with "wcwidth" and a compile problem.
553 905
554 How can I use rxvt-unicode under cygwin? 906 How can I use rxvt-unicode under cygwin?
555 rxvt-unicode should compile and run out of the box on cygwin, using the 907 rxvt-unicode should compile and run out of the box on cygwin, using the
556 X11 libraries that come with cygwin. libW11 emulation is no longer 908 X11 libraries that come with cygwin. libW11 emulation is no longer
557 supported (and makes no sense, either, as it only supported a single 909 supported (and makes no sense, either, as it only supported a single
558 font). I recommend starting the X-server in "-multiwindow" or 910 font). I recommend starting the X-server in "-multiwindow" or
559 "-rootless" mode instead, which will result in similar look&feel as the 911 "-rootless" mode instead, which will result in similar look&feel as the
561 913
562 At the time of this writing, cygwin didn't seem to support any 914 At the time of this writing, cygwin didn't seem to support any
563 multi-byte encodings (you might try "LC_CTYPE=C-UTF-8"), so you are 915 multi-byte encodings (you might try "LC_CTYPE=C-UTF-8"), so you are
564 likely limited to 8-bit encodings. 916 likely limited to 8-bit encodings.
565 917
566 How does rxvt-unicode determine the encoding to use?
567 Is there an option to switch encodings?
568 Unlike some other terminals, rxvt-unicode has no encoding switch, and no
569 specific "utf-8" mode, such as xterm. In fact, it doesn't even know
570 about UTF-8 or any other encodings with respect to terminal I/O.
571
572 The reasons is that there exists a perfectly fine mechanism for
573 selecting the encoding, doing I/O and (most important) communicating
574 this to all applications so everybody agrees on character properties
575 such as width and code number. This mechanism is the *locale*.
576 Applications not using that info will have problems (for example,
577 "xterm" gets the width of characters wrong as it uses it's own,
578 locale-independent table under all locales).
579
580 Rxvt-unicode uses the "LC_CTYPE" locale category to select encoding. All
581 programs doing the same (that is, most) will automatically agree in the
582 interpretation of characters.
583
584 Unfortunately, there is no system-independent way to select locales, nor
585 is there a standard on how locale specifiers will look like.
586
587 On most systems, the content of the "LC_CTYPE" environment variable
588 contains an arbitrary string which corresponds to an already-installed
589 locale. Common names for locales are "en_US.UTF-8", "de_DE.ISO-8859-15",
590 "ja_JP.EUC-JP", i.e. "language_country.encoding", but other forms (i.e.
591 "de" or "german") are also common.
592
593 Rxvt-unicode ignores all other locale categories, and except for the
594 encoding, ignores country or language-specific settings, i.e.
595 "de_DE.UTF-8" and "ja_JP.UTF-8" are the normally same to rxvt-unicode.
596
597 If you want to use a specific encoding you have to make sure you start
598 rxvt-unicode with the correct "LC_CTYPE" category.
599
600 Can I switch locales at runtime?
601 Yes, using an escape sequence. Try something like this, which sets
602 rxvt-unicode's idea of "LC_CTYPE".
603
604 printf '\e]701;%s\007' ja_JP.SJIS
605
606 See also the previous answer.
607
608 Sometimes this capability is rather handy when you want to work in one
609 locale (e.g. "de_DE.UTF-8") but some programs don't support it (e.g.
610 UTF-8). For example, I use this script to start "xjdic", which first
611 switches to a locale supported by xjdic and back later:
612
613 printf '\e]701;%s\007' ja_JP.SJIS
614 xjdic -js
615 printf '\e]701;%s\007' de_DE.UTF-8
616
617 You can also use xterm's "luit" program, which usually works fine,
618 except for some locales where character width differs between program-
619 and rxvt-unicode-locales.
620
621 Can I switch the fonts at runtime?
622 Yes, using an escape sequence. Try something like this, which has the
623 same effect as using the "-fn" switch, and takes effect immediately:
624
625 printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic"
626
627 This is useful if you e.g. work primarily with japanese (and prefer a
628 japanese font), but you have to switch to chinese temporarily, where
629 japanese fonts would only be in your way.
630
631 You can think of this as a kind of manual ISO-2022 switching.
632
633 Why do italic characters look as if clipped?
634 Many fonts have difficulties with italic characters and hinting. For
635 example, the otherwise very nicely hinted font "xft:Bitstream Vera Sans
636 Mono" completely fails in it's italic face. A workaround might be to
637 enable freetype autohinting, i.e. like this:
638
639 URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
640 URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
641
642 My input method wants <some encoding> but I want UTF-8, what can I do?
643 You can specify separate locales for the input method and the rest of
644 the terminal, using the resource "imlocale":
645
646 URxvt.imlocale: ja_JP.EUC-JP
647
648 Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and still
649 use your input method. Please note, however, that you will not be able
650 to input characters outside "EUC-JP" in a normal way then, as your input
651 method limits you.
652
653 Rxvt-unicode crashes when the X Input Method changes or exits.
654 Unfortunately, this is unavoidable, as the XIM protocol is racy by
655 design. Applications can avoid some crashes at the expense of memory
656 leaks, and Input Methods can avoid some crashes by careful ordering at
657 exit time. kinput2 (and derived input methods) generally succeeds, while
658 SCIM (or similar input methods) fails. In the end, however, crashes
659 cannot be completely avoided even if both sides cooperate.
660
661 So the only workaround is not to kill your Input Method Servers.
662
663 Rxvt-unicode uses gobs of memory, how can I reduce that?
664 Rxvt-unicode tries to obey the rule of not charging you for something
665 you don't use. One thing you should try is to configure out all settings
666 that you don't need, for example, Xft support is a resource hog by
667 design, when used. Compiling it out ensures that no Xft font will be
668 loaded accidentally when rxvt-unicode tries to find a font for your
669 characters.
670
671 Also, many people (me included) like large windows and even larger
672 scrollback buffers: Without "--enable-unicode3", rxvt-unicode will use 6
673 bytes per screen cell. For a 160x?? window this amounts to almost a
674 kilobyte per line. A scrollback buffer of 10000 lines will then (if
675 full) use 10 Megabytes of memory. With "--enable-unicode3" it gets
676 worse, as rxvt-unicode then uses 8 bytes per screen cell.
677
678 Can I speed up Xft rendering somehow?
679 Yes, the most obvious way to speed it up is to avoid Xft entirely, as it
680 is simply slow. If you still want Xft fonts you might try to disable
681 antialiasing (by appending ":antialias=false"), which saves lots of
682 memory and also speeds up rendering considerably.
683
684 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
685 Rxvt-unicode will use whatever you specify as a font. If it needs to
686 fall back to it's default font search list it will prefer X11 core
687 fonts, because they are small and fast, and then use Xft fonts. It has
688 antialiasing disabled for most of them, because the author thinks they
689 look best that way.
690
691 If you want antialiasing, you have to specify the fonts manually.
692
693 Mouse cut/paste suddenly no longer works.
694 Make sure that mouse reporting is actually turned off since killing some
695 editors prematurely may leave the mouse in mouse report mode. I've heard
696 that tcsh may use mouse reporting unless it otherwise specified. A quick
697 check is to see if cut/paste works when the Alt or Shift keys are
698 depressed.
699
700 What's with this bold/blink stuff?
701 If no bold colour is set via "colorBD:", bold will invert text using the
702 standard foreground colour.
703
704 For the standard background colour, blinking will actually make the text
705 blink when compiled with "--enable-blinking". with standard colours.
706 Without "--enable-blinking", the blink attribute will be ignored.
707
708 On ANSI colours, bold/blink attributes are used to set high-intensity
709 foreground/background colors.
710
711 color0-7 are the low-intensity colors.
712
713 color8-15 are the corresponding high-intensity colors.
714
715 I don't like the screen colors. How do I change them?
716 You can change the screen colors at run-time using ~/.Xdefaults
717 resources (or as long-options).
718
719 Here are values that are supposed to resemble a VGA screen, including
720 the murky brown that passes for low-intensity yellow:
721
722 URxvt.color0: #000000
723 URxvt.color1: #A80000
724 URxvt.color2: #00A800
725 URxvt.color3: #A8A800
726 URxvt.color4: #0000A8
727 URxvt.color5: #A800A8
728 URxvt.color6: #00A8A8
729 URxvt.color7: #A8A8A8
730
731 URxvt.color8: #000054
732 URxvt.color9: #FF0054
733 URxvt.color10: #00FF54
734 URxvt.color11: #FFFF54
735 URxvt.color12: #0000FF
736 URxvt.color13: #FF00FF
737 URxvt.color14: #00FFFF
738 URxvt.color15: #FFFFFF
739
740 And here is a more complete set of non-standard colors described (not by
741 me) as "pretty girly".
742
743 URxvt.cursorColor: #dc74d1
744 URxvt.pointerColor: #dc74d1
745 URxvt.background: #0e0e0e
746 URxvt.foreground: #4ad5e1
747 URxvt.color0: #000000
748 URxvt.color8: #8b8f93
749 URxvt.color1: #dc74d1
750 URxvt.color9: #dc74d1
751 URxvt.color2: #0eb8c7
752 URxvt.color10: #0eb8c7
753 URxvt.color3: #dfe37e
754 URxvt.color11: #dfe37e
755 URxvt.color5: #9e88f0
756 URxvt.color13: #9e88f0
757 URxvt.color6: #73f7ff
758 URxvt.color14: #73f7ff
759 URxvt.color7: #e1dddd
760 URxvt.color15: #e1dddd
761
762 How can I start rxvtd in a race-free way?
763 Try "rxvtd -f -o", which tells rxvtd to open the display, create the
764 listening socket and then fork.
765
766 What's with the strange Backspace/Delete key behaviour?
767 Assuming that the physical Backspace key corresponds to the BackSpace
768 keysym (not likely for Linux ... see the following question) there are
769 two standard values that can be used for Backspace: "^H" and "^?".
770
771 Historically, either value is correct, but rxvt-unicode adopts the
772 debian policy of using "^?" when unsure, because it's the one only only
773 correct choice :).
774
775 Rxvt-unicode tries to inherit the current stty settings and uses the
776 value of `erase' to guess the value for backspace. If rxvt-unicode
777 wasn't started from a terminal (say, from a menu or by remote shell),
778 then the system value of `erase', which corresponds to CERASE in
779 <termios.h>, will be used (which may not be the same as your stty
780 setting).
781
782 For starting a new rxvt-unicode:
783
784 # use Backspace = ^H
785 $ stty erase ^H
786 $ rxvt
787
788 # use Backspace = ^?
789 $ stty erase ^?
790 $ rxvt
791
792 Toggle with "ESC [ 36 h" / "ESC [ 36 l".
793
794 For an existing rxvt-unicode:
795
796 # use Backspace = ^H
797 $ stty erase ^H
798 $ echo -n "^[[36h"
799
800 # use Backspace = ^?
801 $ stty erase ^?
802 $ echo -n "^[[36l"
803
804 This helps satisfy some of the Backspace discrepancies that occur, but
805 if you use Backspace = "^H", make sure that the termcap/terminfo value
806 properly reflects that.
807
808 The Delete key is a another casualty of the ill-defined Backspace
809 problem. To avoid confusion between the Backspace and Delete keys, the
810 Delete key has been assigned an escape sequence to match the vt100 for
811 Execute ("ESC [ 3 ~") and is in the supplied termcap/terminfo.
812
813 Some other Backspace problems:
814
815 some editors use termcap/terminfo, some editors (vim I'm told) expect
816 Backspace = ^H, GNU Emacs (and Emacs-like editors) use ^H for help.
817
818 Perhaps someday this will all be resolved in a consistent manner.
819
820 I don't like the key-bindings. How do I change them?
821 There are some compile-time selections available via configure. Unless
822 you have run "configure" with the "--disable-resources" option you can
823 use the `keysym' resource to alter the keystrings associated with
824 keysyms.
825
826 Here's an example for a URxvt session started using "rxvt -name URxvt"
827
828 URxvt.keysym.Home: \033[1~
829 URxvt.keysym.End: \033[4~
830 URxvt.keysym.C-apostrophe: \033<C-'>
831 URxvt.keysym.C-slash: \033<C-/>
832 URxvt.keysym.C-semicolon: \033<C-;>
833 URxvt.keysym.C-grave: \033<C-`>
834 URxvt.keysym.C-comma: \033<C-,>
835 URxvt.keysym.C-period: \033<C-.>
836 URxvt.keysym.C-0x60: \033<C-`>
837 URxvt.keysym.C-Tab: \033<C-Tab>
838 URxvt.keysym.C-Return: \033<C-Return>
839 URxvt.keysym.S-Return: \033<S-Return>
840 URxvt.keysym.S-space: \033<S-Space>
841 URxvt.keysym.M-Up: \033<M-Up>
842 URxvt.keysym.M-Down: \033<M-Down>
843 URxvt.keysym.M-Left: \033<M-Left>
844 URxvt.keysym.M-Right: \033<M-Right>
845 URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
846 URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
847 URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
848
849 See some more examples in the documentation for the keysym resource.
850
851 I'm using keyboard model XXX that has extra Prior/Next/Insert keys.
852How do I make use of them? For example, the Sun Keyboard type 4
853has the following mappings that rxvt-unicode doesn't recognize.
854 KP_Insert == Insert
855 F22 == Print
856 F27 == Home
857 F29 == Prior
858 F33 == End
859 F35 == Next
860
861 Rather than have rxvt-unicode try to accommodate all the various
862 possible keyboard mappings, it is better to use `xmodmap' to remap the
863 keys as required for your particular machine.
864
865 How do I distinguish wether I'm running rxvt-unicode or a regular xterm?
866I need this to decide about setting colors etc.
867 rxvt and rxvt-unicode always export the variable "COLORTERM", so you can
868 check and see if that is set. Note that several programs, JED, slrn,
869 Midnight Commander automatically check this variable to decide whether
870 or not to use color.
871
872 How do I set the correct, full IP address for the DISPLAY variable?
873 If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled
874 insecure mode then it is possible to use the following shell script
875 snippets to correctly set the display. If your version of rxvt-unicode
876 wasn't also compiled with ESCZ_ANSWER (as assumed in these snippets)
877 then the COLORTERM variable can be used to distinguish rxvt-unicode from
878 a regular xterm.
879
880 Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script
881 snippets:
882
883 # Bourne/Korn/POSIX family of shells:
884 [ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
885 if [ ${TERM:-foo} = xterm ]; then
886 stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
887 echo -n '^[Z'
888 read term_id
889 stty icanon echo
890 if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
891 echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
892 read DISPLAY # set it in our local shell
893 fi
894 fi
895
896 How do I compile the manual pages for myself?
897 You need to have a recent version of perl installed as /usr/bin/perl,
898 one that comes with pod2man, pod2text and pod2html. Then go to the doc
899 subdirectory and enter "make alldoc".
900
901 My question isn't answered here, can I ask a human?
902 Before sending me mail, you could go to IRC: "irc.freenode.net", channel
903 "#rxvt-unicode" has some rxvt-unicode enthusiasts that might be
904 interested in learning about new and exciting problems (but not FAQs :).
905

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines