i too noticed this bug in one of my friend system running Ubuntu 12.04 (amd64). I went to Console mode and killed gnome-screensaver process, switched back to gui mode and got the session as it is. Then i tried with xscreensaver. On locking the screen i was able to see the authentication dialog of xscreensaver and it was flickering continuously with login failure message. Seems it has something to do with pam.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1011545 Title: Login problem after screen lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1011545/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs