@Matthew, At least bug #855556 seems to have the same core problem. I've published a workaround in bug #855556 that i'm going to copy here, and fix this bug (#861171) and bug #855556.
I think the problem is only related to PolicyKit, because this doesn't handle correctly the 'auth_admin_keep' directive. When an admin user try to halt/restart the system, this directive may ask for admin password an allow only to admin users to halt/restart the system. The workaround goes through modify the 'auth_admin_keep' to 'yes', which allow to any user (admin o desktop user) to halt/restart the system. This is not a full solution, but may be a step forward. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/861171 Title: Shutdown from greeter does nothing when multiple accounts open To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-session/+bug/861171/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs