Ubuntu 10.04 crashed while attempting to switch user

[Nur Sah]

While I was trying to switch from one user to another in ubuntu 10.04 the system gave me a black screen and crashed. I had to restart the computer.

Unfortunately I can't repeat the same problem to verify it, it has happened during an exam, however I got the syslog and Xorg.0.log files so I would be able to check them.

here are the lines that I thing you might have a clue.

949 Oct 12 14:10:08 fbar-desktop gdm-session-worker[21025]: GLib-GObject-CRITICAL: g_value_get_boolean: assertion `G_VALUE_HOLDS_BOOLEAN (value)' failed
950 Oct 12 14:10:23 fbar-desktop gdm-session-worker[21404]: WARNING: Unable to load file '/etc/gdm/custom.conf': No such file or directory
951 Oct 12 14:10:24 fbar-desktop gdm-session-worker[21404]: GLib-GObject-CRITICAL: g_value_get_boolean: assertion `G_VALUE_HOLDS_BOOLEAN (value)' failed
952 Oct 12 14:10:28 fbar-desktop acpid: client 20961[0:0] has disconnected
953 Oct 12 14:10:28 fbar-desktop acpid: client connected from 1235[0:0]
954 Oct 12 14:10:28 fbar-desktop acpid: 1 client rule loaded
955 Oct 12 14:10:31 fbar-desktop gdm-session-worker[21414]: WARNING: Unable to load file '/etc/gdm/custom.conf': No such file or directory
956 Oct 12 14:11:51 fbar-desktop kernel: imklog 4.2.0, log source = /proc/kmsg started.
957 Oct 12 14:11:51 fbar-desktop rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="673" x-info="http://www.rsyslog.com"] (re)start
958 Oct 12 14:11:51 fbar-desktop rsyslogd: rsyslogd's groupid changed to 103
959 Oct 12 14:11:51 fbar-desktop rsyslogd: rsyslogd's userid changed to 101
960 Oct 12 14:11:51 fbar-desktop rsyslogd-2039: Could no open output file '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
961 Oct 12 14:11:51 fbar-desktop kernel: [ 0.000000] Initializing cgroup subsys cpuset

I did not have this problem before and I can't repeat it. Can someone confirm this bug?

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 10.04

[Nur Sah (nursahketene)]

This is the Xorg.0.log file

[Colan Schwartz (colan)]

Marking this as a duplicate of https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/573101. It could also be https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/546578.