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[Timo Aaltonen <tjaalton@xxxxxxxxxx>]

*** This bug is a duplicate of bug 1450557 ***
    https://bugs.launchpad.net/bugs/1450557

** This bug has been marked a duplicate of bug 1450557
   15.04: Broadwell HD 5500: screen corruption after logout

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https://bugs.launchpad.net/bugs/1472070

Title:
  Graphics freakout upon logout on Intel 5500 (Broadwell GT2)

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Got a new Lenovo x250 with HD Graphics 5500 (Broadwell GT2).
  Installed 15.04 ISO downloaded about a week ago.  On a default install
  (which uses Unity, I imagine) had a situation on several occasions
  when logging out of an account or shutting down the computer, the
  graphics go berserk.  The display rapidly cycles from right to left,
  like an old TV that's out of alignment.

  Version Signature: Ubuntu 3.19.0-21.21-generic 3.19.8
  --- 
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  droot      2013 F.... pulseaudio
   /dev/snd/controlC0:  droot      2013 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=2d7b3c38-96fb-4dee-a900-2af302edc0a1
  InstallationDate: Installed on 2015-07-05 (2 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: LENOVO 20CMCTO1WW
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-21-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-21-generic N/A
   linux-backports-modules-3.19.0-21-generic  N/A
   linux-firmware                             1.143.1
  Tags:  vivid
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 3.19.0-21-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/06/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET33W (1.12 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CMCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET33W(1.12):bd04/06/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CMCTO1WW
  dmi.product.version: ThinkPad X250
  dmi.sys.vendor: LENOVO

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