gnome-settings-daemon crashed with SIGSEGV in g_cclosure_marshal_VOID__UINT()

[Nicolas DERIVE]

Starting the system, I got this crash and the unity-panel and nautilus icon themes were not set.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-settings-daemon 3.1.92-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
Date: Tue Sep 27 08:16:50 2011
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
SegvAnalysis:
 Segfault happened at: 0x3413474: mov 0x8(%eax),%eax
 PC (0x03413474) ok
 source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-settings-daemon
StacktraceTop:
 ?? () from /usr/lib/gnome-settings-daemon-3.0/libpower.so
 ?? () from /usr/lib/gnome-settings-daemon-3.0/libpower.so
 g_cclosure_marshal_VOID__UINT (closure=0x917dcd0, return_value=0x0, n_param_values=2, param_values=0x9182628, invocation_hint=0xbfdffae0, marshal_data=0x0) at /build/buildd/glib2.0-2.29.92/./gobject/gmarshal.c:259
 g_closure_invoke (closure=0x917dcd0, return_value=0x0, n_param_values=2, param_values=0x9182628, invocation_hint=0xbfdffae0) at /build/buildd/glib2.0-2.29.92/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=0x915dfe0, detail=0, instance=0x9173d18, emission_return=0x0, instance_and_params=0x9182628) at /build/buildd/glib2.0-2.29.92/./gobject/gsignal.c:3272
Title: gnome-settings-daemon crashed with SIGSEGV in g_cclosure_marshal_VOID__UINT()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 backlight_get_max (error=0xbfdff93c, manager=0x9145848) at gsd-power-manager.c:2460
 idle_set_mode (manager=0x9145848, mode=<optimized out>) at gsd-power-manager.c:2679
 idle_idletime_reset_cb (idletime=0x9182628, manager=0x10) at gsd-power-manager.c:3255
 ?? ()

[Launchpad Janitor (janitor)]

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