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[David Callé <711396@xxxxxxxxxxxxxxxxxx>]

There is a workaround in bug description #711401
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/711401

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https://bugs.launchpad.net/bugs/711396

Title:
  segfault in nux::IOpenGLFrameBufferObject::Deactivate

Status in Unity:
  New
Status in “nux” package in Ubuntu:
  New
Status in “xserver-xorg-video-intel” package in Ubuntu:
  New
Status in “nux” source package in Natty:
  New
Status in “xserver-xorg-video-intel” source package in Natty:
  New

Bug description:
  Binary package hint: xserver-xorg-video-intel

  After the latest X/driver updates compiz runs but if you enable the
  unityshell plugin you get a crash in nux while it tries to setup FBOs.
  It looks like nux is unable to setup the FBO (intel issue) then
  crashes while trying to clean up afterward (nux issue). I've attached
  my compiz crash log.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xserver-xorg-video-intel 2:2.14.0-1ubuntu4
  ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
  Uname: Linux 2.6.38-1-generic x86_64
  NonfreeKernelModules: wl
  Architecture: amd64
  DRM.card0.DVI.D.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.LVDS.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1280x800
   edid-base64: AP///////wAGEFucAAAAAA4QAQOAHRJ4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBvBsAoFAgFzAwIDYAHrMQAAAZAAAAAQAGECAAAAAAAAAAAAogAAAA/gBMVE4xMzNXMQAAAAogAAAA/ABDb2xvciBMQ0QKICAgAMY=
  DRM.card0.VGA.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  Date: Tue Feb  1 12:19:08 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 4.0.2, 2.6.37-12-generic, x86_64: installed 
   bcmwl, 5.100.82.38+bdcom, 2.6.37-12-generic, x86_64: installed 
   bcmwl, 5.100.82.38+bdcom, 2.6.38-1-generic, x86_64: installed
  GraphicsCard:
   Subsystem: Apple Computer Inc. Device [106b:00a1]
     Subsystem: Apple Computer Inc. Device [106b:00a1]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64+mac (20110104)
  MachineType: Apple Inc. MacBook4,1
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   LC_MESSAGES=en_US.utf8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=3fa2b187-0edf-45a7-add7-17bf24470864 ro quiet splash vesafb.sucks=1 vt.handoff=7
  SourcePackage: xserver-xorg-video-intel
  dmi.bios.date: 02/09/08
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MB41.88Z.00C1.B00.0802091535
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Mac-F22788A9
  dmi.board.vendor: Apple Inc.
  dmi.board.version: PVT
  dmi.chassis.asset.tag: Asset Tag#
  dmi.chassis.type: 2
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F22788A9
  dmi.modalias: dmi:bvnAppleInc.:bvrMB41.88Z.00C1.B00.0802091535:bd02/09/08:svnAppleInc.:pnMacBook4,1:pvr1.0:rvnAppleInc.:rnMac-F22788A9:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788A9:
  dmi.product.name: MacBook4,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
  version.libdrm2: libdrm2 2.4.23-1ubuntu3
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
  version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A