I have the same problem. I installed lucid from a CD, keeping my /home installed on karmic on a different partition. As the reporter of this bug doesn't send the xorg logs, I send mine. These are the logs obtained after I had to manually reboot due to the crash.
** Attachment added: "xorg-logs.tar.gz" http://launchpadlibrarian.net/48217845/xorg-logs.tar.gz -- When multiple users login, GDM doesn't come back after any of them logs out leading to DATA LOSS for the others https://bugs.launchpad.net/bugs/569948 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp