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[Robert Ancell <robert.ancell@xxxxxxxxxxxxx>]

I saw this for the first time last night.  The symptons for me were the
user switching not being visible, and the dmesg log about LightDM
crashing with SIGABRT.  Compiz kept running and was usable however.  I'm
flying today so I wont be able to investigate it until I get there.

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https://bugs.launchpad.net/bugs/851345

Title:
  compiz crashes on i915 graphic module with GLX_EXT_texture_from_pixmap
  is missing

Status in Unity:
  Invalid
Status in “compiz” package in Ubuntu:
  Invalid
Status in “lightdm” package in Ubuntu:
  Confirmed
Status in “compiz” source package in Oneiric:
  Invalid
Status in “lightdm” source package in Oneiric:
  Confirmed
Status in “compiz” source package in p-series:
  Invalid
Status in “lightdm” source package in p-series:
  Confirmed

Bug description:
  Ubuntu 11.10:
  unity: 4.20.0-0ubuntu2
  compiz:  1:0.9.6+bzr20110929-0ubuntu1
  xorg: 1:7.6+7ubuntu7
  linux-image-generic: 3.0.0.12.19
  lightdm: 1.0.0-0ubuntu4

  Since today’s updates compiz does not load any more. When i try to log into unity-3d it quickly blinks with the following error message:
  compiz --replace &

  Backend     : gconf
  Integration : true
  Profile     : unity
  Adding plugins
  Skipping upgrade com.canonical.unity.unity.01.upgrade
  Skipping upgrade com.canonical.unity.unity.02.upgrade
  Initializing core options...done
  Initializing bailer options...done
  Initializing detection options...done
  Initializing composite options...done
  Compiz (opengl) - Fatal: GLX_EXT_texture_from_pixmap is missing
  Compiz (opengl) - Fatal: Software rendering detected
  Compiz (bailer) - Info: Ensuring a shell for your session

  But my hardware was absolutely fine with 3d acceleration before today.

  lspci -v:
  00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device 20e4
   Flags: bus master, fast devsel, latency 0, IRQ 43
   Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
   Memory at d0000000 (64-bit, prefetchable) [size=256M]
   I/O ports at 1800 [size=8]
   Expansion ROM at <unassigned> [disabled]
   Capabilities: <access denied>
   Kernel driver in use: i915
   Kernel modules: i915

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: compiz 1:0.9.5.94+bzr2803-0ubuntu5
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
  CompositorRunning: None
  Date: Thu Sep 15 23:00:56 2011
  DistUpgraded: Log time: 2011-09-13 18:19:39.302686
  DistroCodename: oneiric
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 4.1.2, 3.0.0-11-generic, x86_64: installed (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!)
   virtualbox, 4.1.2, 3.0.0-11-generic, x86_64: installed (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!)
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:20e4]
     Subsystem: Lenovo Device [17aa:20e4]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
  MachineType: LENOVO 2774A29
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=de:en
   PATH=(custom, no user)
   LANG=de_CH.UTF-8
   LC_MESSAGES=de_DE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=7cec099f-15dd-4509-ba10-033af14b1600 ro quiet splash pcie_aspm=force vt.handoff=7
  SourcePackage: compiz
  UpgradeStatus: Upgraded to oneiric on 2011-09-13 (2 days ago)
  dmi.bios.date: 12/10/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6EET54WW (3.14 )
  dmi.board.name: 2774A29
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6EET54WW(3.14):bd12/10/2010:svnLENOVO:pn2774A29:pvrThinkPadX301:rvnLENOVO:rn2774A29:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2774A29
  dmi.product.version: ThinkPad X301
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.5.94+bzr2803-0ubuntu5
  version.ia32-libs: ia32-libs 20090808ubuntu21
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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