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[Bug 1313840] [NEW] Screen lock causes texture corruption in 14.04

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Public bug reported:

In 13.10 and previous releases, locking the screen would go to the login
screen, and then blank the screen and put the display to sleep. In
14.04, it goes to the login screen, then fades to black, but after that
the screen is replaced with what looks like a corrupted texture buffer
of the login screen, with alternating black and corrupted chunks in the
framebuffer, and then the screen never goes to sleep, it just stays like
that.

I can't adequately capture a screenshot since, of course, it's at the
login screen. Hopefully this is replicable on other systems using the
NVidia 331 binary drivers.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity-services 7.2.0+14.04.20140416-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-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  304.117  Tue Nov 26 21:25:36 PST 2013
 GCC version:  gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
.tmp.unity.support.test.0:
 
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,copytex,maximumize,decor,gnomecompat,grid,imgpng,mousepoll,move,place,regex,unitymtgrabhandles,session,wall,animation,resize,workarounds,snap,expo,ezoom,fade,scale,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Mon Apr 28 10:23:14 2014
DistUpgraded: 2014-04-21 12:00:15,259 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
GraphicsCard:
 NVIDIA Corporation GF110 [GeForce GTX 570 Rev. 2] [10de:1086] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: eVga.com. Corp. Device [3842:1571]
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=b48f669d-8024-48b8-b267-aa9fc0ed9a1b ro intel_iommu=on quiet splash
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-04-21 (6 days ago)
dmi.bios.date: 08/22/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3903
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8Z68-V LE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3903:bd08/22/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Mon Apr 21 12:52:34 2014
xserver.configfile: default
xserver.errors:
 open /dev/dri/card0: No such file or directory
 open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 
xserver.version: 2:1.15.1-0ubuntu2

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu

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https://bugs.launchpad.net/bugs/1313840

Title:
  Screen lock causes texture corruption in 14.04

Status in “unity” package in Ubuntu:
  New

Bug description:
  In 13.10 and previous releases, locking the screen would go to the
  login screen, and then blank the screen and put the display to sleep.
  In 14.04, it goes to the login screen, then fades to black, but after
  that the screen is replaced with what looks like a corrupted texture
  buffer of the login screen, with alternating black and corrupted
  chunks in the framebuffer, and then the screen never goes to sleep, it
  just stays like that.

  I can't adequately capture a screenshot since, of course, it's at the
  login screen. Hopefully this is replicable on other systems using the
  NVidia 331 binary drivers.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity-services 7.2.0+14.04.20140416-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-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  304.117  Tue Nov 26 21:25:36 PST 2013
   GCC version:  gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,copytex,maximumize,decor,gnomecompat,grid,imgpng,mousepoll,move,place,regex,unitymtgrabhandles,session,wall,animation,resize,workarounds,snap,expo,ezoom,fade,scale,unityshell]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Mon Apr 28 10:23:14 2014
  DistUpgraded: 2014-04-21 12:00:15,259 DEBUG enabling apt cron job
  DistroCodename: trusty
  DistroVariant: ubuntu
  GraphicsCard:
   NVIDIA Corporation GF110 [GeForce GTX 570 Rev. 2] [10de:1086] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: eVga.com. Corp. Device [3842:1571]
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=b48f669d-8024-48b8-b267-aa9fc0ed9a1b ro intel_iommu=on quiet splash
  SourcePackage: unity
  UpgradeStatus: Upgraded to trusty on 2014-04-21 (6 days ago)
  dmi.bios.date: 08/22/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3903
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V LE
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3903:bd08/22/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Mon Apr 21 12:52:34 2014
  xserver.configfile: default
  xserver.errors:
   open /dev/dri/card0: No such file or directory
   open /dev/fb0: No such file or directory
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   
  xserver.version: 2:1.15.1-0ubuntu2

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