gnome-panel assert failure: gnome-panel: ../../src/xcb_io.c:528: _XAllocID: Assertiva `ret != inval_id' falhou.

[lobo]

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-panel 1:3.2.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-2.6-generic 3.2.0-rc3
Uname: Linux 3.2.0-2-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu1
Architecture: i386
AssertionMessage: gnome-panel: ../../src/xcb_io.c:528: _XAllocID: Assertiva `ret != inval_id' falhou.
Date: Mon Dec 5 04:16:05 2011
DuplicateOf: https://bugs.launchpad.net/bugs/862023
ExecutablePath: /usr/bin/gnome-panel
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111129.1)
ProcCmdline: gnome-panel
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: gnome-panel
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 __assert_fail () from /lib/i386-linux-gnu/libc.so.6
 _XAllocID () from /usr/lib/i386-linux-gnu/libX11.so.6
Title: gnome-panel assert failure: gnome-panel: ../../src/xcb_io.c:528: _XAllocID: Assertiva `ret != inval_id' falhou.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 __GI___assert_fail (assertion=0xaa3419 "ret != inval_id", file=0xaa338a "../../src/xcb_io.c", line=528, function=0xaa349e "_XAllocID") at assert.c:81
 _XAllocID (dpy=0x8cf6c58) at ../../src/xcb_io.c:528
 XCreatePixmap (dpy=0x8cf6c58, d=18892696, width=22, height=22, depth=32) at ../../src/CrPixmap.c:56
 _cairo_xlib_surface_create_similar (abstract_src=0x9161700, content=CAIRO_CONTENT_COLOR_ALPHA, width=22, height=22) at /build/buildd/cairo-1.10.2/src/cairo-xlib-surface.c:393
 _cairo_surface_create_similar_scratch (other=0x9161700, content=CAIRO_CONTENT_COLOR_ALPHA, width=22, height=22) at /build/buildd/cairo-1.10.2/src/cairo-surface.c:461