*** This bug is a duplicate of bug 1167301 ***
    https://bugs.launchpad.net/bugs/1167301

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xorg-server (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1167231

Title:
  Xorg crashed with SIGABRT in OsAbort() - Cannot mirror screen in good
  resolution

Status in “linux” package in Ubuntu:
  Confirmed
Status in “xorg-server” package in Ubuntu:
  Confirmed

Bug description:
  I have a Lenovo Thinkpad Twist with Core i7 processor and on-chip
  HD4000 GPU. It has an internal 1366x768 (16:9) display and I have
  connected and external 1920x1080 (16:9) monitor via HDMI. By default
  the display gets mirrored with only 1024x768 (4:3) because this is the
  highest common resolution of the two reported by xrandr. I can switch
  to a large desktop formed by the two screens with the System Settings
  (section "Display") with each screen using its native resolution.

  To get a better mirroring I tried to mirror my screen via the command

  xrandr --output LVDS 1--auto --output HDMI1 --auto --same-as LVDS1

  taken from

  https://kis.kellogg.northwestern.edu/Pages/ExternalDisplaysLinux.aspx

  After that both screens showed garbage and do not react to mouse
  clicks and key presses any more. Unplugging the external screen left
  the internal with the garbage and I had to SSH in from another Ubuntu
  machine and run

  sudo restart lightdm

  to recover the display of the laptop.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: xserver-xorg-core 2:1.13.3-0ubuntu5
  Uname: Linux 3.9.0-030900rc5-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.9.2-0ubuntu5
  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 Apr 10 11:00:56 2013
  DistUpgraded: Fresh install
  DistroCodename: raring
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/Xorg
  ExecutableTimestamp: 1365458279
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] 
(rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2205]
  InstallationDate: Installed on 2013-03-28 (12 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130328)
  MachineType: LENOVO 334729G
  MarkForUpload: True
  ProcCmdline: /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp 
vt7 -novtswitch
  ProcCwd: /etc/X11
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-030900rc5-generic 
root=UUID=7229d092-c8f9-4b8a-bae8-529fc6a0340f ro elevator=deadline quiet 
splash vt.handoff=7
  Signal: 6
  SourcePackage: xorg-server
  StacktraceTop:
   OsAbort ()
   ?? ()
   FatalError ()
   ?? ()
   __libc_start_main (main=0x7fa2c48ec1b0, argc=9, ubp_av=0x7fff708c7b88, 
init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
stack_end=0x7fff708c7b78) at libc-start.c:260
  Title: Xorg crashed with SIGABRT in OsAbort()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 02/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GDET92WW (1.52 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 334729G
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvrGDET92WW(1.52):bd02/05/2013:svnLENOVO:pn334729G:pvrThinkPadTwist:rvnLENOVO:rn334729G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 334729G
  dmi.product.version: ThinkPad Twist
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.9~daily13.04.05-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.43-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.3-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.3-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu5
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.5-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.7-0ubuntu1
  xserver.bootTime: Wed Apr 10 11:04:01 2013
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.3-0ubuntu5
  xserver.video_driver: intel

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