I am using unity. I don't know what specific program is responsible for turning the screen off. `ps` seems to indicate that `gnome-screensaver` is not running, although the package is installed. I just uninstalled the package and the behavior did not change. I guess this is a bug in unity then.
-- 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/1520298 Title: Lockscreen doesn't turn off the screen Status in gnome-screensaver package in Ubuntu: Incomplete Bug description: precisely as in https://bugs.launchpad.net/ubuntu/+source/gnome- screensaver/+bug/1292041: Ctrl-Alt-L locks the screen but it is never turned off. Also, after the default delay (5 min) the screen is locked but not turned off. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: gnome-screensaver 3.6.1-7ubuntu1 ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6 Uname: Linux 4.2.0-19-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Thu Nov 26 11:05:18 2015 GnomeSessionIdleInhibited: No GnomeSessionInhibitors: None GsettingsGnomeSession: org.gnome.desktop.session session-name 'ubuntu' org.gnome.desktop.session idle-delay uint32 600 SourcePackage: gnome-screensaver UpgradeStatus: Upgraded to wily on 2015-10-25 (32 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1520298/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

