Are you using multiple monitors (laptop lcd + external for example)? At least for me the password dialog appears sometimes in "wrong" (detached) display. Also I sometimes have witnessed dialog not being shown on single display setup, but when I enter my password to this non-visible dialog I can still unlock the desktop.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/777712 Title: password dialog doesn't appear when screensaver ends To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/777712/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs