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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1503541

Title:
  kern.log flooded with "[drm:gen8_irq_handler [i915_bpo]] *ERROR* The
  master control interrupt lied (SDE)!"

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On an intel i5 toshiba laptop on vivid. Upgraded to the
  3.19.0-30-generic kernel and started seeing this. Additionally, bootup
  was slow.

  kern.log/dmesg is flooded with this output

  [   69.070503] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master
  control interrupt lied (SDE)!

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-30-generic 3.19.0-30.34
  ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6
  Uname: Linux 3.19.0-30-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  wolsen     2493 F.... pulseaudio
   /dev/snd/controlC1:  wolsen     2493 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Oct  6 22:30:20 2015
  HibernationDevice: RESUME=UUID=096b9e95-621b-4cc7-a10c-250149e1b48b
  InstallationDate: Installed on 2015-07-15 (83 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: TOSHIBA Satellite E45-B
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-30-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro noprompt quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-30-generic N/A
   linux-backports-modules-3.19.0-30-generic  N/A
   linux-firmware                             1.143.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/12/2015
  dmi.bios.vendor: INSYDE Corp.
  dmi.bios.version: 1.10
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: CA10CU
  dmi.board.vendor: TOSHIBA
  dmi.board.version: 2.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: OEM Chassis ManuFacturer
  dmi.chassis.version: OEM Chassis Version
  dmi.modalias: dmi:bvnINSYDECorp.:bvr1.10:bd01/12/2015:svnTOSHIBA:pnSatelliteE45-B:pvrPSPNAU-001002:rvnTOSHIBA:rnCA10CU:rvr2.0:cvnOEMChassisManuFacturer:ct10:cvrOEMChassisVersion:
  dmi.product.name: Satellite E45-B
  dmi.product.version: PSPNAU-001002
  dmi.sys.vendor: TOSHIBA

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