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[Launchpad Bug Tracker <1435070@xxxxxxxxxxxxxxxxxx>]

[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1435070

Title:
  Thinkpad T550: Broadwell with Intel HD5500 powers off randomly

Status in xorg package in Ubuntu:
  Expired

Bug description:
  In the first two weeks of owning a Broadwell T550, I have suffered
  about two dozen abrupt power-offs. This has happened:

  a) While resuming from suspend.
  b) While in normal operation and just moving the mouse.
  c) While switching from X to console by pressing ctrl-alt-F1.

  There was no kernel panic, no log files, just an abrupt power-off.

  In conjunction with several other HD5500 issues, I am starting to
  suspect the intel video driver, and have switched to the modesetting
  driver. Setting the Intel driver to use AccelMethod: none made the
  system more reliable but did not eliminate crashes.

  Workaround: Put the following in /etc/X11/xorg.conf:

  Section "Device"
          Identifier "intel"
          Driver "modesetting"
  EndSection

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  ApportVersion: 2.16.2-0ubuntu4
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Sun Mar 22 13:23:01 2015
  InstallationDate: Installed on 2015-03-05 (17 days ago)
  InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago)
  --- 
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: XFCE
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroRelease: Ubuntu 15.04
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2223]
  InstallationDate: Installed on 2015-05-18 (133 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  LightdmGreeterLog:
   ** (lightdm-gtk-greeter:2356): WARNING **: Failed to load user image: Failed to open file '/home/shevek/.face': No such file or directory
   upstart: indicator-power main process (2592) killed by TERM signal
   upstart: indicator-application main process (2594) terminated with status 1
   upstart: indicator-sound main process (2593) killed by TERM signal
  LightdmGreeterLogOld:
   ** (lightdm-gtk-greeter:2290): WARNING **: Failed to load user image: Failed to open file '/home/shevek/.face': No such file or directory
   g_dbus_connection_real_closed: Remote peer vanished with error: Underlying GIOStream returned 0 bytes on an async read (g-io-error-quark, 0). Exiting.
   upstart: indicator-power main process (2331) killed by TERM signal
   upstart: indicator-application main process (2333) killed by TERM signal
  MachineType: LENOVO 20CKCT01WW
  Package: xorg 1:7.7+7ubuntu4
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-28-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  Tags:  vivid ubuntu
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 3.19.0-28-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip kvm lpadmin plugdev sambashare sudo
  XorgConf:
   Section "Device"
   	Identifier "Intel"
   	Driver "modesetting"
   	Option "SWCursor" "true"
   EndSection
  _MarkForUpload: True
  dmi.bios.date: 03/19/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N11ET31W (1.07 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CKCT01WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98417 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN11ET31W(1.07):bd03/19/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CKCT01WW
  dmi.product.version: ThinkPad T550
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Thu Sep 24 20:10:36 2015
  xserver.configfile: /etc/X11/xorg.conf
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.1-0ubuntu3.1
  xserver.video_driver: modeset

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