Do you still have the issue? What version of Ubuntu and gdm do you use? That works fine for me with dapper. Could you activate the "Enable debug messages to system log" option with gdmsetup ("Security" tab) and copy the log from /var/log/syslog to a comment after login in out and being loged in again with the same user?
** Changed in: gdm (Ubuntu) Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Confirmed => Needs Info -- Can't login with a different user if Automatic login is set https://launchpad.net/bugs/43299 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs