gnome-display-properties assert failure: display-properties:ERROR:xrandr-capplet.c:643:rebuild_resolution_combo: code should not be reached

[toobuntu]

Binary package hint: gnome-control-center

Start gnome-display-properties on i915 chipset with a VGA external monitor connected to the machine, click the mirror check box and it will crash.

ProblemType: Crash
Architecture: i386
AssertionMessage: display-properties:ERROR:xrandr-capplet.c:643:rebuild_resolution_combo: code should not be reached
CheckboxSubmission: 828a5c329e78d7d842afb06bc29466b6
CheckboxSystem: b4511570833504a308af03903c18ec08
Date: Thu Sep 17 11:46:57 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gnome-display-properties
Package: gnome-control-center 1:2.27.91-0ubuntu3
ProcCmdline: gnome-display-properties
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
Signal: 6
SourcePackage: gnome-control-center
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/tls/i686/cmov/libc.so.6
 abort () from /lib/tls/i686/cmov/libc.so.6
 g_assertion_message () from /usr/lib/libglib-2.0.so.0
 _start ()
Title: gnome-display-properties assert failure: display-properties:ERROR:xrandr-capplet.c:643:rebuild_resolution_combo: code should not be reached
Uname: Linux 2.6.31-10-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:__kernel_vsyscall ()
*__GI_raise (sig=6)
*__GI_abort () at abort.c:92
IA__g_assertion_message (
rebuild_gui (app=0x8adde20) at xrandr-capplet.c:643

[Felix Geyer (debfx)]

gnome-display-properties also crashes when resizing the VirtualBox window (changing display resolution) while gnome-display-properties is running on the guest machine.

[Niall Creech (sevenmachines-deactivatedaccount)]

With nouveau driver on startup
$ gnome-display-properties

(gnome-display-properties:2317): Gtk-WARNING **: Ignoring the separator setting

(gnome-display-properties:2317): Gtk-WARNING **: No object called:
**
display-properties:ERROR:xrandr-capplet.c:643:rebuild_resolution_combo: code should not be reached
Aborted (core dumped)

[Niall Creech (sevenmachines-deactivatedaccount)]

Not sure if mine really is the same problem but i'll describe it and a sort of workaround
My default resolution is 1280x1024 but when desktop starts its in 1280x960 and and xrandr shows seemingly wrong resolution list without 1280x1024 on it. if it ret to start gnome-display-properties now i get the crash described above.
if i now manually set
$xrandr --output VGA2 --mode 1280x1024
i get the correct resolution, and runing xrand shows the 'correct' set of resolutions. now if i start gnome-display-properties it runs fine. the problem will be reset on next log in.

[Niall Creech (sevenmachines-deactivatedaccount)]

Correction to above, i need to set xrand to one of the original available resolutions before xrandr will show the 'correct' set of resolutions and i can set it to 1280x1024. note, i do not get this with the nvidia binaryt driver, only nouveau. the set of commands in terminal on new login is attached

$ apt-show-versions gnome-control-center libdrm2 libdrm-nouveau1 xserver-xorg-video-nouveau nouveau-kernel-source

gnome-control-center/karmic uptodate 1:2.28.0-0ubuntu2
libdrm-nouveau1/karmic uptodate 2.4.13-1ubuntu1
libdrm2/karmic uptodate 2.4.13-1ubuntu1
nouveau-kernel-source/karmic uptodate 0.0.15+git20090823-0ubuntu1
xserver-xorg-video-nouveau/karmic uptodate 1:0.0.10~git+20090823+569a17a-0ubuntu1

[Chris Coulson (chrisccoulson)]

This crash was introduced by this commit: http://git.gnome.org/cgit/gnome-control-center/commit/?id=dc62815db2ea56cdb7ee6ca8b0953ef6e2774963

[Sebastien Bacher (seb128)]

there is a patch upstream now

[Chris (chris-yourdreamnet)]

This bug still affects me even though I am running the latest version of karmic.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-control-center - 1:2.28.0-0ubuntu4

---------------
gnome-control-center (1:2.28.0-0ubuntu4) karmic; urgency=low

  * debian/patches/81_upstream_change_fix_xrand_capplet_crash.patch:
    - bugzilla change to fix a crasher in the xrandr capplet
      (lp: #431953)
  * debian/patches/82_upstream_change_fix_aboutme_crash.patch:
    - bugzilla change to fix the aboutme capplet crashing on closing
      (lp: #414538)

 -- Sebastien Bacher <email address hidden> Tue, 06 Oct 2009 19:20:49 +0200

[Yves (yavady)]

The fix worked for me. The app no longer crashes. I reported a duplicate bug on this earlier.