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[Bug 1516822] Re: Xorg crashes with segmentation fault


Stephen Eisenhauer, thank you for reporting this and helping make Ubuntu

As per http://support.lenovo.com/us/en/products/laptops-and-
netbooks/thinkpad-t-series-laptops/thinkpad-t540p an update to your
computer's buggy and outdated BIOS is available (2.21). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible, and the
information above is provided, then please mark this report Status New.
Otherwise, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-2.21

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

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

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  Xorg crashes with segmentation fault

Status in xorg package in Ubuntu:

Bug description:
  1) Release information:

  $ lsb_release -rd
  Description:	Ubuntu 15.10
  Release:	15.10

  2) Package version information

  15:26:38-stephen~$ apt-cache policy xserver-xorg
    Installed: 1:7.7+7ubuntu4
    Candidate: 1:7.7+7ubuntu4
    Version table:
   *** 1:7.7+7ubuntu4 0
          500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status
  15:27:08-stephen~$ apt-cache policy xserver-xorg-core
    Installed: 2:1.17.2-1ubuntu9
    Candidate: 2:1.17.2-1ubuntu9
    Version table:
   *** 2:1.17.2-1ubuntu9 0
          500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status
  15:27:11-stephen~$ apt-cache policy xserver-xorg-video-intel
    Installed: 2:2.99.917+git20150808-0ubuntu4
    Candidate: 2:2.99.917+git20150808-0ubuntu4
    Version table:
   *** 2:2.99.917+git20150808-0ubuntu4 0
          500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status

  3) What you expected to happen

  Xorg never crashes due to segfaults.

  4) What happened instead

  Xorg crashes due to segfaults.

  I have recently seen an increase in unexpected X crashes while using
  my machine, sending me back to the login screen and losing the state
  of my open applications.

  I use a ThinkPad T540p with Intel graphics and Ubuntu 15.10 (upgraded
  from 15.04). I use Xrandr to configure and position my external and
  internal displays, including the use of the --panning/--scale/--dpi
  options to help my external display behave more like my internal HiDPI
  display (in case that's relevant to this problem).

  I heavily use PhpStorm, a JetBrains IDE from their IDEA family built
  in Java. The last two times this crash has happened to me (Friday and
  today), I was interacting with the IDE at the time. I saved a copy of
  Xorg.0.log.old both times and will attempt to attach both to this
  report (their backtraces differ a bit). During the first crash I
  believe I was simply interacting with the UI in some way; During the
  second crash, I had just clicked the window decoration's "X" button to
  close PhpStorm.

  Please let me know if there's something I can do to help diagnose the
  crash further. In the meantime, I've installed the -dbg packages for
  xorg-core and xorg-video-intel in the hopes that future backtraces
  might be more useful. If I see this crash again, I'll post the log
  here in the comments.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Mon Nov 16 15:21:27 2015
  DistUpgraded: 2015-11-03 14:44:11,845 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroVariant: ubuntu
   vboxhost, 5.0.4, 3.19.0-31-generic, x86_64: installed
   vboxhost, 5.0.4, 4.2.0-16-generic, x86_64: installed
   vboxhost, 5.0.4, 4.2.0-18-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, if not too technical
   Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2210]
  InstallationDate: Installed on 2014-06-24 (510 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: LENOVO 20BECTO1WW
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=022a17a0-1dc9-4b5c-ad86-912739c13a73 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to wily on 2015-11-03 (13 days ago)
  dmi.bios.date: 03/19/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GMET62WW (2.10 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BECTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 Std
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGMET62WW(2.10):bd03/19/2014:svnLENOVO:pn20BECTO1WW:pvrThinkPadT540p:rvnLENOVO:rn20BECTO1WW:rvrSDK0E50512Std:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20BECTO1WW
  dmi.product.version: ThinkPad T540p
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:
  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.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
  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 Nov 16 14:37:29 2015
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
   product id                               38562 
   vendor                                     MEI
  xserver.version: 2:1.17.2-1ubuntu9

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