I've found the same problem on Hardy. So I don't think it is kernel related at all. If I disable compiz I get the correct password request dialog. With compiz enabled I get a white screen.
-- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs