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[Mika-kuoppala <1453298@xxxxxxxxxxxxxxxxxx>]

Created attachment 120563
drm/i915/vlv: Take forcewake on media engine writes

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https://bugs.launchpad.net/bugs/1453298

Title:
  8086:0f31 Xubuntu freeze once a day

Status in xf86-video-intel:
  Unknown
Status in xserver-xorg-video-intel package in Ubuntu:
  Triaged

Bug description:
  Xubuntu Vivid crashes once a day with Intel Celeron J1900 / HD
  Graphics, mainly when watching videos and more rarely during routine
  tasks like surfing on firefox or during a skype call

  - 00:02.0 VGA compatible controller [0300]: Intel Corporation Atom Processor
  Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0e)

  I think it may be related with this bug https://bugs.freedesktop.org/show_bug.cgi?id=88012 (found via https://bbs.archlinux.org/viewtopic.php?id=195736 i have the same config but another distro)
  I have tried to set "NoAccel" option to xorg conf file to true but same thing ...

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Sat May  9 00:11:14 2015
  InstallationDate: Installed on 2015-05-02 (6 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  steve      1530 F.... pulseaudio
   /dev/snd/controlC1:  steve      1530 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=fdcd8774-2dc2-4a6b-8fa8-9d3c6baa07a9
  InstallationDate: Installed on 2015-05-02 (7 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: MEDION B269
  Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1
  PackageArchitecture: amd64
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic.efi.signed root=UUID=c1ef472e-75c1-4e99-9d2d-d8c5bdc94414 ro noprompt quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-16-generic N/A
   linux-backports-modules-3.19.0-16-generic  N/A
   linux-firmware                             1.143
  RfKill:
   
  Tags:  vivid vivid
  UdevLog: Error: [Errno 2] Aucun fichier ou dossier de ce type: '/var/log/udev'
  Uname: Linux 3.19.0-16-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/26/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: BTLTW08.110
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: BTDD-LT
  dmi.board.vendor: MEDION
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MEDION
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrBTLTW08.110:bd09/26/2014:svnMEDION:pnB269:pvr1.0:rvnMEDION:rnBTDD-LT:rvr1.0:cvnMEDION:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: B269
  dmi.product.version: 1.0
  dmi.sys.vendor: MEDION

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