I notice the same issue on Ubuntu 12.04, however it also happens after a few hours of use. I have nvidia-current 304.43-0ubuntu1~precise~xup1 installed (from the ubuntu-x-swat ppa)
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/943494 Title: Login screen shows corrupted fragments of prior user's session on dual-screen setup with proprietary nvidia drivers Status in “nvidia-graphics-drivers” package in Ubuntu: Confirmed Bug description: See attached photo. The login screen is showing screen fragments of the prior user's session -- which could contain sensitive or private information. This happens only very rarely, after prolonged multi-day use. Logging in and out gets rid of the problem. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xorg 1:7.6+7ubuntu7.1 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 280.13 Wed Jul 27 16:53:56 PDT 2011 GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) .tmp.unity.support.test.0: ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,compiztoolbox,imgpng,snap,vpswitch,move,resize,unitymtgrabhandles,gnomecompat,wall,grid,regex,place,animation,session,workarounds,expo,fade,scale,ezoom,unityshell] CompositorRunning: compiz Date: Wed Feb 29 13:50:40 2012 DistUpgraded: Fresh install DistroCodename: oneiric DistroVariant: ubuntu DkmsStatus: nvidia-current, 280.13, 3.0.0-12-generic, x86_64: installed nvidia-current, 280.13, 3.0.0-16-generic, x86_64: installed virtualbox, 4.1.2, 3.0.0-12-generic, x86_64: installed virtualbox, 4.1.2, 3.0.0-16-generic, x86_64: installed GraphicsCard: nVidia Corporation GF106 [GeForce 450 GTS] [10de:0dc4] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. Device [1462:2360] InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use) xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use) MachineType: MSI MS-7593 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-16-generic root=UUID=c628fd7c-55fe-46e7-931b-dfdb979e054f ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/28/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V3.6 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: MSI X58M (MS-7593) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV3.6:bd04/28/2010:svnMSI:pnMS-7593:pvr1.0:rvnMSI:rnMSIX58M(MS-7593):rvr1.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr1.0: dmi.product.name: MS-7593 dmi.product.version: 1.0 dmi.sys.vendor: MSI version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6.1 version.ia32-libs: ia32-libs 20090808ubuntu26 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/943494/+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

