I'm using Xubuntu 13.10 and am having problems with hibernation when multiple users are logged in.
I have already re-enabled hibernation as detailed in this bug https://bugs.launchpad.net/ubuntu/+source/indicator-session/+bug/1232814 .
My issue is if there are more than one active sessions. My situation is I am the only users with admin rights (I belong to sudo) on the family computer. If one of the kids suspends their session instead of logging out then I have difficulty hibernating.
My difficulty is, I choose "Hibernate" from the action menu, the screen is locked but never hibernates. When I unlock the screen I'm prompted to supply my password to hibernate.
I, and all others users, am able to suspend when others are logged in. I am able to hibernate as expected it no one else in logged in. I am able to hibernate if others are logged in by using "sudo pm-hibernate".
Previous releases allowed me to hibernate the computer when others were logged in.
To be clear when I say "logged in" the other accounts are not being remotely used, I mean the user didn't terminate his session.
I can think of no solution to this after stumbling around in policykit settings.