I just tried the same proceedure with gnome-screensaver. The system logs did not report anything during a crash.
BTW, I do not think the error message stated above has anything to do with the problem at hand (Researched the issue on the Net). The only common denominator at this point is: gdmflexiserver -s Is there a way to debug this? -- Switch user crashes system. https://launchpad.net/bugs/76902 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs