Logging into already logged in user (after switching users) causes user to log out

[wallpaper_thief]

Binary package hint: gnome-session

When switching users and logging into a user that is already logged in from the login screen, the user is logged out and returned to the login screen. I have several family members using this computer, and some of us need to compile and download things in the background while others use this computer under their own account, and so this is very detrimental to us. This kills all the processes and application data the logged in user was running.

Please tell me what other information would be useful and how to collect it.

Running: Lucid 10.04

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-session 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Mon Jul 19 21:45:14 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-session

[Sebastien Bacher (seb128)]

Thank you for your bug report, the issue seems rather an Xorg crash than a GNOME issue, did you watch if there is any crash in your xorg logs?

[wallpaper_thief (maeoll)]

Hello, thank you for your quick response. It seems very similar to the following bug:
http://ubuntuforums.org/showthread.php?t=1477795

so I assumed it was a gnome session bug. however, it might be an Xorg crash. I did not yet look into the xorg logs. How do I do this? I'm very new to linux and the ubuntu community, but I would like to help out as much as possible.

[wallpaper_thief (maeoll)]

bump

[wallpaper_thief (maeoll)]

hello? I asked how to do what you suggested LAST MONTH and no one responded. I can reproduce this any time with the following setup:

xinerama off
dual monitor on
compiz on OR off (doesn't matter)