I cannot reproduce this bug in Wily after latest updates. Please update your system and make sure this still exist.
$ apt-cache policy lightdm lightdm: Installed: 1.16.2-0ubuntu1 Candidate: 1.16.2-0ubuntu1 ** Changed in: lightdm (Ubuntu) Status: Confirmed => Incomplete ** Changed in: unity Status: New => Incomplete ** Changed in: unity (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1498775 Title: Greeter auth doesn't unlock unity lockscreen Status in Unity: Incomplete Status in lightdm package in Ubuntu: Incomplete Status in unity package in Ubuntu: Incomplete Bug description: Using current wily - use indicator-session to go to the greeter (e.g pick another user in the list) - select your normal user back - enter your password you should go back to an unlocked session but it's still locked... To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1498775/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp