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[nimu <1511704@xxxxxxxxxxxxxxxxxx>]

penalvch, thank you for your help.

I don't want to risk a BIOS update for now, so I cannot tell you if the
bug is somehow BIOS-related.

Instead, I have decided to try an update of my graphics drivers using this repo:
ppa:oibaf/graphics-drivers

This "fixes" the crash problem.

So, while it may still be true, that this bug is somehow BIOS-related,
the fact that I am not experiencing any crashes since I've updated the
graphics drivers suggests that there probably is something wrong with
the graphics drivers that Ubuntu 15.10 uses by default.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1511704

Title:
  Xorg crash (probably on window resize)

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  Whole UI crashes and returns to login screen. All open applications
  are closed (the whole session is gone). Crashes happen irregularly but
  seem to be provoked by window resizes or window animations

  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
  .tmp.unity.support.test.0:
   
  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: Fri Oct 30 12:49:07 2015
  DistUpgraded: Fresh install
  DistroCodename: wily
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 5.0.4, 4.2.0-16-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Fujitsu Limited. Device [10cf:16c2]
  InstallationDate: Installed on 2015-05-22 (160 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: FUJITSU LIFEBOOK A532
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=cc91c7ea-2cb7-4ac7-ae59-560aa09e6167 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/28/2012
  dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
  dmi.bios.version: Version 2.05
  dmi.board.name: FJNBB2A
  dmi.board.vendor: FUJITSU
  dmi.chassis.type: 10
  dmi.chassis.vendor: FUJITSU
  dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion2.05:bd09/28/2012:svnFUJITSU:pnLIFEBOOKA532:pvr:rvnFUJITSU:rnFJNBB2A:rvr:cvnFUJITSU:ct10:cvr:
  dmi.product.name: LIFEBOOK A532
  dmi.sys.vendor: FUJITSU
  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.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: Fri Oct 30 12:30:17 2015
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               13890 
   vendor                                     SEC
  xserver.version: 2:1.17.2-1ubuntu9

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