gnome-settings-daemon crashed with SIGABRT in __assert_fail_base()

[angel orna]

angel@angel-laptop:~$ apt-cache policy gnome-settings-daemon
gnome-settings-daemon:
  Instalados: 3.2.2-0ubuntu17
  Candidato: 3.2.2-0ubuntu17
  Tabla de versión:
 *** 3.2.2-0ubuntu17 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.2.2-0ubuntu17
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Wed Feb 15 01:37:50 2012
DuplicateOf: https://bugs.launchpad.net/bugs/931145
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
Signal: 6
SourcePackage: gnome-settings-daemon
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: gnome-settings-daemon crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-01-14 (31 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __assert_fail_base (fmt=<optimized out>, assertion=0x7fe9224eead8 "!xcb_xlib_threads_sequence_lost", file=0x7fe9224eed92 "../../src/xcb_io.c", line=<optimized out>, function=<optimized out>) at assert.c:94
 __GI___assert_fail (assertion=0x7fe9224eead8 "!xcb_xlib_threads_sequence_lost", file=0x7fe9224eed92 "../../src/xcb_io.c", line=273, function=0x7fe9224eeeb8 "poll_for_event") at assert.c:103
 poll_for_event (dpy=<optimized out>) at ../../src/xcb_io.c:270
 poll_for_response (dpy=0x8c4be0) at ../../src/xcb_io.c:288
 _XEventsQueued (dpy=0x8c4be0, mode=<optimized out>) at ../../src/xcb_io.c:362

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.