gnome-settings-daemon assert failure: gnome-settings-daemon: ../../src/xcb_io.c:140: dequeue_pending_request: Assertion `req == dpy->xcb->pending_requests' failed.

[Xavier Fung]

This comes up after a reboot. Have launched Firefox Nightly (tarball install in home directory), Pidgin and Teamviewer 6 and seems doesn't related to the GNome Settings Daemon.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-settings-daemon 3.1.3-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-5.6-generic 3.0.0-rc7
Uname: Linux 3.0.0-5-generic x86_64
Architecture: amd64
AssertionMessage: gnome-settings-daemon: ../../src/xcb_io.c:140: dequeue_pending_request: Assertion `req == dpy->xcb->pending_requests' failed.
CrashCounter: 1
Date: Wed Jul 13 09:50:30 2011
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcEnviron:
 LANG=en_HK.UTF-8
 LANGUAGE=en_HK:en
 SHELL=/bin/false
 PATH=(custom, no user)
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
 __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: gnome-settings-daemon assert failure: gnome-settings-daemon: ../../src/xcb_io.c:140: dequeue_pending_request: Assertion `req == dpy->xcb->pending_requests' failed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: