I've had this too, but never had the presence of mind to catch it at the time. Thanks for capturing it.
** Package changed: unity (Ubuntu) => gnome-screensaver (Ubuntu) ** This bug has been flagged as a security vulnerability -- 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/1012852 Title: Desktop visible on lock screen Status in “gnome-screensaver” package in Ubuntu: Confirmed Bug description: I have found this problem a number of times and the only pattern I can seem to find is that I have to lock the system a number of times before the bug appears. The locking of the screen does not have to be manual as today my laptop has only been locked automatically and the bug re-appeared. Basically when I move the mouse/press a key to wake the screen the lock screen appears but my desktop is visible in the background. The program I left open does not appear to be visible however. The photos show the lock screen and what the screen shows after the screen is unlocked. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: unity 5.12-0ubuntu1.1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 Uname: Linux 3.2.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] Date: Wed Jun 13 21:39:04 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: unity 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/1012852/+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

