The log shows LightDM doing the correct thing - it unlocks the logind session when you get to the greeter. I suspect that Unity has regressed and is not removing its lock screen when this occurs.
** Also affects: unity (Ubuntu) Importance: Undecided Status: New ** Changed in: unity (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633749 Title: Double login to switch back to my session after closing the guest session To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1633749/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs