Public bug reported: I don't know whether this is a unity bug or elsewhere, but I'm noticing this problem after upgrading from utopic to vivid.
On your desktop, go to System Settings -> Brightness and Lock and set the "turn screen off" time to 1 hour. Wait 10 minutes without using your desktop, and the screen goes blank. However, even though "Lock screen after" is set to "Screen turns off", the lock screen is not activated. ** Affects: unity (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1391616 Title: Screen blanks after 10 minutes regardless of brightness setting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1391616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs