Check with bug 886496, filed by me. Does it have anything to do with it? It looks like possibly related. Take out the 'Energy Saving Part' from your system.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/886579 Title: user switching from screen lock freezes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/886579/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
