The severity is that one because Ubuntu has no composite by manager, that's something you decided to go and install on your own from universe and which is not officially supported then. I mark it as to review for edgy anyway because that would be nice to fix but that's not a priority since that's not something people using the standard configuration will face
** Changed in: gnome-session (Ubuntu) Target: None => ubuntu-6.10 -- gnome-session logout hang with a composite manager https://launchpad.net/bugs/59244 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs