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[Bug 931967] Re: Corrupted graphics after the login until the unity launcher appears


I am seeing the same things as reported above, and I am seeing this in
14.04 LTS.  I switched to fglrx to try to get rid of the corruption and
still saw it, although it was less than while using the Open Source
drivers for AMD/ATi.  Tearfree created other problems so I went back to
Open Source.  Now the video corruption is back again, and sometimes it
includes bits of desktop from a previous session even after a reboot.

I even tried switching to another ppa to get the latest and greatest
versions from git and still see the corruption while waiting for the
greeter to be ready for logon, and between greeter screen and logon to
desktop, as well as when I log off and wait for the greeter to return to

ASUS/ATi Radeon HD 5750, dual head with a pair of Dell S2440L LCD
monitors.  Ubuntu 14.04.2 LTS.

Wanted to try the above workaround but this system does not use GDM, so
no directory or files on which to do the same edits.

$ lsb_release -a
LSB Version:	core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch:core-4.1-amd64:core-4.1-noarch:cxx-3.0-amd64:cxx-3.0-noarch:cxx-3.1-amd64:cxx-3.1-noarch:cxx-3.2-amd64:cxx-3.2-noarch:cxx-4.0-amd64:cxx-4.0-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-3.1-amd64:desktop-3.1-noarch:desktop-3.2-amd64:desktop-3.2-noarch:desktop-4.0-amd64:desktop-4.0-noarch:desktop-4.1-amd64:desktop-4.1-noarch:graphics-2.0-amd64:graphics-2.0-noarch:graphics-3.0-amd64:graphics-3.0-noarch:graphics-3.1-amd64:graphics-3.1-noarch:graphics-3.2-amd64:graphics-3.2-noarch:graphics-4.0-amd64:graphics-4.0-noarch:graphics-4.1-amd64:graphics-4.1-noarch:languages-3.2-amd64:languages-3.2-noarch:languages-4.0-amd64:languages-4.0-noarch:languages-4.1-amd64:languages-4.1-noarch:multimedia-3.2-amd64:multimedia-3.2-noarch:multimedia-4.0-amd64:multimedia-4.0-noarch:multimedia-4.1-amd64:multimedia-4.1-noarch:printing-3.2-amd64:printing-3.2-noarch:printing-4.0-amd64:printing-4.0-noarch:printing-4.1-amd64:printing-4.1-noarch:qt4-3.1-amd64:qt4-3.1-noarch:security-4.0-amd64:security-4.0-noarch:security-4.1-amd64:security-4.1-noarch
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.2 LTS
Release:	14.04
Codename:	trusty

$ apt-show-versions unity-greeter
unity-greeter:amd64/trusty-updates 14.04.11-0ubuntu1 uptodate

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  Corrupted graphics after the login  until the unity launcher appears

Status in OEM Priority Project:
  Fix Released
Status in OEM Priority Project oneiric series:
  Fix Released
Status in OEM Priority Project precise series:
  Fix Released
Status in Unity Greeter:
  Fix Released
Status in unity-greeter package in Ubuntu:
  Fix Released
Status in unity-greeter source package in Precise:
  Fix Released
Status in unity-greeter source package in Quantal:
  Fix Released

Bug description:
  After login, it's very possible the screen will appear corrupted and show artifacts of a previous session.  This is a security and privacy concern.

  [Test Case]
  Simple as logging in several times.  It's highly reproducable (over 50% in my tests).

  [Regression Potential]
  Seems low.  We had this same patch in 12.04, but it got accidentally dropped for 12.10.

  [Original Report]
  With the latest updates im getting corrupted graphics - images after the login  until the unity launcher  - desktop appears  and this is happening in every system restart - relogin.

  Im attaching a screenshot of what im getting , it looks like its a
  combination  of corrupted images from the windows that was running
  while i was doing the latest updates , my  last session before the

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: xorg 1:7.6+10ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5
  Uname: Linux 3.2.0-15-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: ""
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  290.10  Wed Nov 16 17:39:29 PST 2011
   GCC version:  gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-12ubuntu1)

  ApportVersion: 1.91-0ubuntu1
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,regex,animation,snap,move,place,mousepoll,vpswitch,wall,resize,gnomecompat,workarounds,compiztoolbox,grid,imgpng,expo,fade,ezoom,scale,session,switcher,unityshell]
  CompositorRunning: compiz
  Date: Tue Feb 14 11:40:18 2012
  DistUpgraded: Log time: 2011-09-27 15:36:23.910451
  DistroCodename: precise
  DistroVariant: ubuntu
   NVIDIA Corporation G86 [GeForce 8600M GS] [10de:0425] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Sony Corporation Device [104d:9005]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
   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: Sony Corporation VGN-FZ31Z
   Socket 0:
     no product info available
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-15-generic root=UUID=12e02107-7815-4276-b7ac-7bceee898897 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to precise on 2012-02-02 (11 days ago)
   Section "Device"
    Identifier	"Default Device"
    Option	"NoLogo"	"True"
  dmi.bios.date: 12/21/2007
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: R2110J7
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrR2110J7:bd12/21/2007:svnSonyCorporation:pnVGN-FZ31Z:pvrC6006UGW:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VGN-FZ31Z
  dmi.product.version: C6006UGW
  dmi.sys.vendor: Sony Corporation
  version.compiz: compiz 1:
  version.ia32-libs: ia32-libs 20090808ubuntu33
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu3
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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