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Bug#536523: compiz: causes Alt to be mostly ignored

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brian m. carlson

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Jul 10, 2009, 3:00:16 PM7/10/09
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Package: compiz
Version: 0.8.2-6
Severity: normal

When I am using compiz, the Alt key does not work, except for GNOME
keyboard shortcuts. Alt-Tab does not work and neither do any of the
compiz plugin shortcuts. Shortcuts that do not require the use of Alt
work just fine, however. Ctrl-Alt-Backspace does not work[0], and
neither does Ctrl-Alt-F1 (and similar sequences) to switch VTs. All of
these function correctly when I use metacity instead. They also
function correctly for another user that uses metacity.

I have tried xev, and it correctly reports the KeyPress and KeyRelease
events for Alt. Also, if I am in GNOME Terminal, pressing an Alt key
combination sends an escape sequence to the terminal, but otherwise does
nothing.

However, GNOME keyboard shortcuts work properly: pressing Ctrl-Alt-L to
lock the screen works, and so does Ctrl-Alt-Del to bring up the shutdown
prompt.

[0] DontZap is set to off in xorg.conf, and terminate:ctrl_alt_bksp is
enabled, so this should work correctly.

lakeview ok % setxkbmap -print
xkb_keymap {
xkb_keycodes { include "evdev+aliases(qwerty)" };
xkb_types { include "complete" };
xkb_compat { include "complete" };
xkb_symbols { include "pc+us+inet(evdev)+altwin(alt_super_win)+ctrl(nocaps)+compose(lwin)+terminate(ctrl_alt_bksp)" };
xkb_geometry { include "thinkpad(60)" };
};


-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.31-rc2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages compiz-core depends on:
ii libc6 2.9-19 GNU C Library: Shared libraries
ii libgl1-mesa-glx [libgl1] 7.4.4-1 A free implementation of the OpenG
ii libice6 2:1.0.5-1 X11 Inter-Client Exchange library
ii libsm6 2:1.1.0-2 X11 Session Management library
ii libstartup-notification0 0.10-1 library for program launch feedbac
ii libx11-6 2:1.2.1-1 X11 client-side library
ii libxcomposite1 1:0.4.0-3 X11 Composite extension library
ii libxcursor1 1:1.1.9-1 X cursor management library
ii libxdamage1 1:1.1.1-4 X11 damaged region extension libra
ii libxext6 2:1.0.4-1 X11 miscellaneous extension librar
ii libxfixes3 1:4.0.3-2 X11 miscellaneous 'fixes' extensio
ii libxinerama1 2:1.0.3-2 X11 Xinerama extension library
ii libxml2 2.7.3.dfsg-1 GNOME XML library
ii libxrandr2 2:1.3.0-2 X11 RandR extension library
ii libxslt1.1 1.1.24-2 XSLT processing library - runtime
ii mesa-utils 7.4.4-1 Miscellaneous Mesa GL utilities

Versions of packages compiz-core recommends:
ii compiz-plugins 0.8.2-6 OpenGL window and compositing mana

Versions of packages compiz-core suggests:
pn nvidia-glx <none> (no description available)

-- no debconf information

--
brian m. carlson / brian with sandals: Houston, Texas, US
+1 713 440 7475 | http://crustytoothpaste.ath.cx/~bmc | My opinion only
OpenPGP: RSA v4 4096b 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187

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Michel Dänzer

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Jul 11, 2009, 8:20:10 AM7/11/09
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On Fri, 2009-07-10 at 18:38 +0000, brian m. carlson wrote:
> Package: compiz
> Version: 0.8.2-6
> Severity: normal
>
> When I am using compiz, the Alt key does not work, except for GNOME
> keyboard shortcuts. Alt-Tab does not work and neither do any of the
> compiz plugin shortcuts. Shortcuts that do not require the use of Alt
> work just fine, however. Ctrl-Alt-Backspace does not work[0], and
> neither does Ctrl-Alt-F1 (and similar sequences) to switch VTs. All of
> these function correctly when I use metacity instead. They also
> function correctly for another user that uses metacity.
>
> I have tried xev, and it correctly reports the KeyPress and KeyRelease
> events for Alt. Also, if I am in GNOME Terminal, pressing an Alt key
> combination sends an escape sequence to the terminal, but otherwise does
> nothing.

Is it the same for both Alt keys, or does one of them work properly?

Does your session startup invoke xmodmap in any way?


--
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer

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brian m. carlson

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Jul 11, 2009, 10:50:06 AM7/11/09
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On Sat, Jul 11, 2009 at 02:10:10PM +0200, Michel Dänzer wrote:
> Is it the same for both Alt keys, or does one of them work properly?

Neither one of them works. They are both equally useless.

> Does your session startup invoke xmodmap in any way?

No. There's no .Xmodmap or .Xsession file and .gnomerc doesn't call
xmodmap. GNOME does have some keyboard layout settings, but those are
all reflected in the setxkbmap call I copied in my first mail.

Before I filed this bug report, I did extensive searching of Google and
the BTS to see if there was something that I did wrong in some way or if
this behavior was seen by other people. I couldn't find anything.

This problem probably has been around for a while, but I didn't notice
it except for the fact that Ctrl-Alt-Bksp and Ctrl-Alt-F* didn't work.

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