I'm seeing this in the two systems I upgraded to 14.10, both with NVIDIA cards, different models.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1377537 Title: Screen does not lock or turn off automatically Status in “unity” package in Ubuntu: Confirmed Bug description: In Ubuntu 14.10 (upgraded from 14.04), the screen does not lock or turn off after the designated time in System Settings / Brightness and Lock. The screen lock can still be activated manually from the System menu or keyboard shortcut (although I notice that the default has changed from CTRL-ALT-DEL to Super-L, and if I change this back in the System Settings / Keyboard / Shortcuts, both combinations work - it seems that the unity plugin in compiz (CCSM / unity / general) has aother screen lock key short cut). Other users are reporting the same issue: see http://ubuntuforums.org/showthread.php?t=2246601&highlight=turn. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: unity 7.3.1+14.10.20140915-0ubuntu2 Uname: Linux 3.17.0-rc7-git-20140929.1829 x86_64 ApportVersion: 2.14.7-0ubuntu3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: Unity Date: Sun Oct 5 08:07:30 2014 InstallationDate: Installed on 2014-02-08 (238 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140207) SourcePackage: unity UpgradeStatus: Upgraded to utopic on 2014-10-04 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1377537/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp