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[thomick <thomickcz@xxxxxxxxx>]

** Also affects: nvidia-drivers-ubuntu
   Importance: Undecided
       Status: New

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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 Drivers Ubuntu:
  New
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

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