Sorry for the very late response. Took me a while until I found the time to download and try Karmic (alpha 5). I didn't install it, just tried the live-CD and added a second user. Switching then back and forth indeed works! So it seems that the bug is cured in Karmic!
-- [i945gm] switching user twice in Gnome causes X crash https://bugs.launchpad.net/bugs/246906 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs