I think it not duplicate with https://bugs.launchpad.net/bugs/49579. And it need to change from Private Security → Public to Public Security also.
** This bug is no longer a duplicate of bug 49579 screen doesn't lock when some menu is open ** Information type changed from Public to Public Security -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1335835 Title: Sometime, Beforce 5 seconds that unity lock screen appeared, user sessions screen was visbled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1335835/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
