I'm on Precise now and had this problem already on Oneiric. It is not fixed. The problem is that is doesn't occur always. It's quite random.
-- 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/886605 Title: Desktop, Launcher and Bar still visible when screen locked Status in “gnome-screensaver” package in Ubuntu: Confirmed Bug description: When I lock my screen, instead of the monitor going, black, the desktop background goes black, but the Unity launcher and the main bar stay visible. When I press a key or move my mouse the "unlock" dialog, asking me for my password pops up, centered on the black desktop background. I think the main issue here is gnome-screensaver failing to fullscreen. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: gnome-screensaver 3.2.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Sat Nov 5 13:05:04 2011 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) SourcePackage: gnome-screensaver UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/886605/+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