The big difference I see in the logs when it hangs is the massive amount of the following two lines:
gnome-session[3008]: DEBUG(+): GsmXSMPClient: Client '0x9c808a0 []' received RegisterClient(NULL) gnome-session[3008]: DEBUG(+): GsmXSMPClient: rejected: invalid previous_id -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/812104 Title: Long delay on session logout To manage notifications about this bug go to: https://bugs.launchpad.net/unity-2d/+bug/812104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
