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[Calin <1354046@xxxxxxxxxxxxxxxxxx>]

Same issue,  with a Dell XPS 12 (Ultrabook)

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https://bugs.launchpad.net/bugs/1354046

Title:
  no 3d acceleration with error [drm:intel_dp_start_link_train] *ERROR*
  too many full retries, give up

Status in “linux” package in Ubuntu:
  Confirmed
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Confirmed

Bug description:
  Description:
  3D games, video (especially flash) makes computer unresponsive. The problem has been present since upgrade to Utopic, but have recently become worse, maybe  because of error message

  [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up

  which appears in all terminals.

  How to reproduce:
  Start a 1080p video. e.g. Note that the video is not run from an encrypted folder.
  Or watch a video on youtube.
  Reproducable for new users as well, so not related to /home/$USER

  What happens:
  Usage on all four CPUs on my DELL XPS 13 DEVELOPER EDITION will be between 30% and 100%.

  What I expected:
  Expected same 3D performance as on Thrusty.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.16.0-6.11-generic 3.16.0-rc7
  Uname: Linux 3.16.0-6-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.5-0ubuntu3
  Architecture: amd64
  BootLog:
   Scanning for Btrfs filesystems
    * Setting up X socket directories...       
  [ OK ]
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Thu Aug  7 17:03:51 2014
  DistUpgraded: Fresh install
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-precise-amd64-20120703-2
  DistroCodename: utopic
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 4.3.12, 3.13.0-24-generic, x86_64: installed
   vboxhost, 4.3.12, 3.13.0-27-generic, x86_64: installed
   vboxhost, 4.3.12, 3.13.0-29-generic, x86_64: installed
   vboxhost, 4.3.12, 3.16.0-5-generic, x86_64: installed
   vboxhost, 4.3.12, 3.16.0-6-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:058b]
  InstallationDate: Installed on 2013-08-27 (345 days ago)
  InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08
  MachineType: Dell Inc. Dell System XPS L322X
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-6-generic root=UUID=221de9c1-f10a-4be4-9273-5c12864c8680 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  SystemImageInfo: Error: [Errno 2] No such file or directory: 'system-image-cli'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/15/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0PJHXN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.11+14.10.20140707-0ubuntu1b1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.54-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.3-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 10.0.0-1ubuntu2
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.3-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu9
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Thu Aug  7 16:54:59 2014
  xserver.configfile: default
  xserver.errors:
   intel: Failed to load module "dri3" (module does not exist, 0)
   intel: Failed to load module "present" (module does not exist, 0)
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4933
   vendor                                     CMN
  xserver.version: 2:1.15.1-0ubuntu9

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