I have a similar issue on Gutsy with all updates installed. Graphics card is an Intel GMA 950 with the "intel" driver. When I try to logout the system freezes completely and a few white blinking blocks appear on the screen. It seems to be related with compiz. But it freezes not everytime with compiz is enabled. There seem to be other triggers, too.
-- Feisty freezes upon Logout or Switch user https://bugs.launchpad.net/bugs/118605 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs