The issue starts with that lightdm update, https://launchpad.net/ubuntu/+source/lightdm/1.16.1-0ubuntu1
The update changes the pam configuration, unsure if that could confuse unity in some way? ** 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/1498775 Title: Greeter auth doesn't unlock unity lockscreen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1498775/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
