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[Jbmacbrodie-m <1453298@xxxxxxxxxxxxxxxxxx>]

Given Luka Karinja's results, I checked my kernel args to see if
something else could account for my results.  I found -
i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1
i915.i915_enable_fbc=1.

rc6=1 seems to be known to add instability, perhaps the freq cap offset
that.  I've stripped the args (except boot, splash, quiet) will be
running new tests.

Kernel args I've been using the last few weeks on T100CHI.

boot=pci,force acpi=force rcutree.rcu_idle_gp_delay=1
libahci.ignore_sss=1 splash quiet acpi_enforce_resources=lax
i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1
i915.i915_enable_fbc=1 drm.vblankoffdelay=1 pcie_aspm=force acpi=force
rcutree.rcu_idle_gp_delay=1 libahci.ignore_sss=1 splash quiet
acpi_enforce_resources=lax drm.vblankoffdelay=1 pcie_aspm=force

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

Title:
  Xubuntu freeze once a day

Status in xf86-video-intel:
  Confirmed
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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