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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1408593

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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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:
  Incomplete
Status in xorg package in Ubuntu:
  New

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)

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