I got the same error message because ~/.dbus/ and its contents were for some reason owned by root. Changing the owner resolved the problem.
-- Gnome settings manager error to start desktop https://bugs.launchpad.net/bugs/84876 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
