This sounds related: http://cgit.freedesktop.org/xorg/xserver/commit/?id=dc48bd653c7e1013e2d69e3f59ae3cbc0c893473 -- Seems current X.org does not like logind to be restarted, but that's what we do right now in the systemd package (so that after a dist- upgrade you actually run the current version).
** Also affects: xorg-server (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1473800 Title: restarting logind during systemd update causes screen to lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1473800/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs