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[Alberto Salvia Novella <es20490446e@xxxxxxxxx>]

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Critical

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https://bugs.launchpad.net/bugs/1535456

Title:
  Xorg crashed when attempting to turn on laptop's builtin display

Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  Having been hit by bug #1535452 (please see the description), I went
  back to Display settings and I tried to manually turn on the laptop's
  builtin display that I had previously turned off (obviously did this
  while the external monitor was connected). When I clicked on the
  button to turn on the builtin display, xorg crashed.

  Since this is a crasher, and potentially leads to disastrous data loss
  (imagine you are left with no monitor and can't save your work prior
  to switching off the laptop), I'll set this to confirm because there's
  no point in waiting for some other random user to confirm it.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  340.96  Sun Nov  8 22:33:28 PST 2015
   GCC version:  gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2)
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Jan 18 22:33:36 2016
  DistUpgraded: 2016-01-18 11:11:01,146 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.19.0-43-generic, x86_64: installed
   bbswitch, 0.7, 4.2.0-23-generic, x86_64: installed
   nvidia-340, 340.96, 3.19.0-43-generic, x86_64: installed
   nvidia-340, 340.96, 4.2.0-23-generic, x86_64: installed
   vboxhost, 4.3.14: added
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:0647]
   NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] [10de:1140] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] GeForce 710M [1025:0691]
  InstallationDate: Installed on 2013-10-11 (829 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Acer Aspire V3-571G
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic.efi.signed root=UUID=5830b30e-69e8-4bb4-8a2b-bc2b43c7414a ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to wily on 2016-01-18 (0 days ago)
  dmi.bios.date: 10/15/2012
  dmi.bios.vendor: Acer
  dmi.bios.version: V2.07
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: VA50_HC_CR
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V2.07
  dmi.modalias: dmi:bvnAcer:bvrV2.07:bd10/15/2012:svnAcer:pnAspireV3-571G:pvrV2.07:rvnAcer:rnVA50_HC_CR:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.07:
  dmi.product.name: Aspire V3-571G
  dmi.product.version: V2.07
  dmi.sys.vendor: Acer
  version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
  version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Mon Jan 18 17:01:13 2016
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   NVIDIA(0): Failed to initiate mode change.
   NVIDIA(0): Failed to complete mode change
   NVIDIA(0): Failed to initiate mode change.
   NVIDIA(0): Failed to complete mode change
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.2-1ubuntu9.1

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