Thanks, polkit-gnome-authentication-agent-1 was in fact disabled for some reason in startup applications. This has resolved the issue for me.
-- Cannot Unlock "System > Administration > Login Screen" https://bugs.launchpad.net/bugs/431147 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
