I wasn't able to work out how to fix it today but the bug seems to be in gnome-screensaver debian/patches/33_unity_lockscreen_on_lock.patch in the gs_listener_set_active () functions that were added. This must be set to TRUE when the Unity screen lock is active to make gnome-settings- daemon do the screen blank.
We really need to kill gnome-screensaver entirely and just have Unity listen to GNOME Session and provide the GNOME screensaver interface. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1292041 Title: Lockscreen doesn't turn off the screen Status in OEM Priority Project: New Status in OEM Priority Project trusty series: New Status in “gnome-screensaver” package in Ubuntu: Confirmed Bug description: The new Unity lock screen doesn't turn off the monitor screen. I can wait as long as 10 minutes after activating the lock screen and the monitor still doesn't trun off. Then when I unlock the screen and don't use mouse or keyboard monitor will turn off (it's about 5 seconds after unlocking). To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1292041/+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