Maybe I have found how to reproduce it constantly. It happens when I log in "Ubuntu" session (instead of Ubuntu-2D) in a system without 3D extension so the system automatically fallback to unity-2d. When I try to close this session there is a long delay, if instead I log directly in Ubuntu-2D the session close correctly and quickly.
-- 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