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[William Hua <1408593@xxxxxxxxxxxxxxxxxx>]

Small excerpt from my Xorg.0.log:

[    15.153] (II) GLX: Initialized DRI2 GL provider for screen 0
[    15.159] (II) intel(0): switch to mode 1280x800@60.0 on LVDS1 using pipe 0, position (0, 0), rotation normal, reflection none
[    15.176] (II) intel(0): Setting screen physical size to 338 x 211

Please let me know if there's some other way I can help...

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https://bugs.launchpad.net/bugs/1408593

Title:
  X server disables acceleartion or turns off output (makes screen
  black) after kernel upgrade to v3.18 (Ubuntu Vivid)

Status in linux package in Ubuntu:
  Confirmed
Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  after reboot into kernel 3.18 (3.18.0-8.9)

  with Intel driver version 2:2.99.916+git20141119-1~exp1ubuntu1 it disables output / blacks the screen and puts in the log :
  [    37.179] (II) GLX: Initialized DRI2 GL provider for screen 0
  [    37.215] (WW) intel(0): Failed to submit rendering commands, trying again with outputs disabled.
  (then refuses to switch local VTs both by [Ctrl-]Alt-Fn and by chvt in remote logins)

  after reverting to 2:2.99.914-1~exp1ubuntu6 it puts :
  [    41.679] (II) GLX: Initialized DRI2 GL provider for screen 0
  [    41.711] (EE) intel(0): Failed to submit rendering commands, disabling acceleration.
  (then allows to log in bu with desktop composition effects disabled)

  after reboot back into kernel 3.16.0-28.38 , both *.916 and *.914
  drivers work well

  probably this bug should also be attached to kernel package v3.18

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xorg 1:7.7+7ubuntu2
  ProcVersionSignature: Ubuntu 3.18.0-8.9-generic 3.18.1
  Uname: Linux 3.18.0-8-generic x86_64
  ApportVersion: 2.15.1-0ubuntu1
  Architecture: amd64
  Date: Thu Jan  8 11:23:52 2015
  InstallationDate: Installed on 2009-11-01 (1893 days ago)
  InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=uk_UA.UTF-8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.15.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mwg        1214 F.... pulseaudio
  CRDA:
   country UA: DFS-UNSET
   	(2400 - 2483 @ 40), (N/A, 20), (N/A), NO-OUTDOOR
   	(5150 - 5350 @ 40), (N/A, 20), (N/A), NO-OUTDOOR
   	(57240 - 65880 @ 2160), (N/A, 40), (N/A), NO-OUTDOOR
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=6932e499-f0ad-4456-b93c-2b7f9bf763dc
  InstallationDate: Installed on 2009-11-01 (1893 days ago)
  InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  MachineType: Acer Aspire xxxx
  Package: xorg 1:7.7+7ubuntu2
  PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic root=UUID=9bc29087-2e9e-4bf9-bea1-2540902b5ae3 ro rootflags=commit=3600 transparent_hugepage=always init=/lib/systemd/systemd
  ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-28-generic N/A
   linux-backports-modules-3.16.0-28-generic  N/A
   linux-firmware                             1.140
  Tags:  vivid vivid
  Uname: Linux 3.16.0-28-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout disk kvm lpadmin netdev plugdev sambashare src
  _MarkForUpload: True
  dmi.bios.date: 05/06/2011
  dmi.bios.vendor: INSYDE
  dmi.bios.version: V1.24
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: JV10_CS
  dmi.board.vendor: Intel Corp.
  dmi.board.version: Base Board Version
  dmi.chassis.type: 1
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvrV1.24:bd05/06/2011:svnAcer:pnAspirexxxx:pvrV1.24:rvnIntelCorp.:rnJV10_CS:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
  dmi.product.name: Aspire xxxx
  dmi.product.version: V1.24
  dmi.sys.vendor: Acer

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