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[Apport retracing service <1423051@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1338492 ***
    https://bugs.launchpad.net/bugs/1338492

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1338492, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Attachment removed: "CoreDump.gz"
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** Attachment removed: "Disassembly.txt"
   https://bugs.launchpad.net/bugs/1423051/+attachment/4321526/+files/Disassembly.txt

** Attachment removed: "ProcMaps.txt"
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** Attachment removed: "ProcStatus.txt"
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** Attachment removed: "Registers.txt"
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** Attachment removed: "Stacktrace.txt"
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** Attachment removed: "ThreadStacktrace.txt"
   https://bugs.launchpad.net/bugs/1423051/+attachment/4321542/+files/ThreadStacktrace.txt

** This bug has been marked a duplicate of bug 1338492
   Xorg crashed with SIGABRT in OsAbort()

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/1423051

Title:
  Xorg crashed with SIGABRT in OsAbort() [attempted user switching]

Status in xorg-server package in Ubuntu:
  New

Bug description:
  Current vivid du jour. This X.org crash happened when I tried to
  switch to another user with the indicator. Most often this works fine,
  but sometimes I get a black screen, the monitor switches off, and no
  amount of Ctrl+Alt+F1 and similar will turn it back on, so I had to
  reboot.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-core 2:1.16.2.901-1ubuntu4
  ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
  Uname: Linux 3.18.0-13-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.16.1-0ubuntu2
  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
  CrashCounter: 1
  Date: Wed Feb 18 06:14:55 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/Xorg
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21fa]
  InstallationDate: Installed on 2014-11-20 (89 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141119)
  MachineType: LENOVO 2324CTO
  ProcCmdline: /usr/bin/X -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.18.0-13-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ quiet splash vt.handoff=7
  Signal: 6
  SourcePackage: xorg-server
  StacktraceTop:
   OsAbort ()
   ?? ()
   FatalError ()
   ?? ()
   __libc_start_main (main=0x7f7e14b7aa70, argc=11, argv=0x7fffaf570b08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffaf570af8) at libc-start.c:287
  Title: Xorg crashed with SIGABRT in OsAbort()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 07/09/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ET95WW (2.55 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2324CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98401 Pro
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2324CTO
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12.0+15.04.20150202-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.58-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.4.2-2ubuntu5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.4.2-2ubuntu5
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.2.901-1ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Wed Feb 18 06:16:00 2015
  xserver.configfile: default
  xserver.errors:
   Error loading keymap /var/lib/xkb/server-3A5D997967FFDC6D992E9D3823EC3FFCFDAEE6F4.xkm
   XKB: Failed to load keymap. Loading default keymap instead.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   
  xserver.version: 2:1.16.2.901-1ubuntu4

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