Could this be related to the 'gdm' user not having priviledges to suspend or hibernate, perhaps? I'm not sure...
In any case, can we temporarily remove suspend and hibernate from the GDM menu? -- Suspend does nothing https://launchpad.net/bugs/3642 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
