update-manager crashed with SIGABRT in __GI___assert_fail(): assertion !xcb_xlib_unknown_req_in_deq

[Hugo Venhorst]

I booted up Precise, logged in and started update-manager from the launcher.
update-manager proposed a partial upgrade
i started the partial upgade
then update-manager crashed.

i tried to restart the program from the crash dialogue, but it crashed again

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.2
ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2
Uname: Linux 3.2.0-12-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.91-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Fri Feb 3 18:19:18 2012
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1323286387
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/update-manager --dist-upgrade
ProcEnviron:
 PATH=(custom, no user)
 LANG=nl_NL.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: update-manager
StacktraceTop:
 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
 ?? () from /usr/lib/i386-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/i386-linux-gnu/libX11.so.6
Title: update-manager crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-02-03 (0 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 __GI___assert_fail (assertion=0x3d0ecbd "!xcb_xlib_unknown_req_in_deq", file=0x3d0ecaa "../../src/xcb_io.c", line=178, function=0x3d0ed80 "dequeue_pending_request") at assert.c:81
 dequeue_pending_request (dpy=<optimized out>, req=<optimized out>) at ../../src/xcb_io.c:184
 _XReply (dpy=0x87db160, rep=0xbfc20a54, extra=0, discard=1) at ../../src/xcb_io.c:638
 XInternAtom (dpy=0x87db160, name=0x91c8078 "GDK_TIMESTAMP_PROP", onlyIfExists=0) at ../../src/IntAtom.c:181
 gdk_x11_atom_to_xatom_for_display (atom=0x9a, display=0x87e7800) at /build/buildd/gtk+3.0-3.3.12/./gdk/x11/gdkproperty-x11.c:246

[Hugo Venhorst (yougo)]

update:

running update-manager again: proposes partial upgrade

initiated partial upgrade.

a dialogue appears:
partial upgrade aborted; 'your system does not contain ubunt-desktop, kubuntu-desktop, xubuntu-desktop or lubunt-desktop. version cannot be determined. can continue' (rough translation from Dutch)

clicked OK

a dialogue appears:
the package 'Unity' is selected for removal, but is listed on the do-not-remove blackist. cannot continue.

upgrade aborted, update-manager closed.

[Hugo Venhorst (yougo)]

update:

opened a terminal.
entered command: sudo apt-get install ubuntu-desktop
-ubuntu-desktop is already installed and is the latest version

entered command: sudo apt-get update && sudo apt-get upgrade
-upgrade followed through OK

ran update-manager again. results: still same as post #5

[Launchpad Janitor (janitor)]

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