compiz crashed with SIGSEGV in GLScreen::GLScreen()

[Tobias N]

Ubuntu 12.10 post Alpha 3 amd64: After logging in, compiz crashes and produces apport to come up.

1:0.9.8+bzr3319-0ubuntu2

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: compiz-core 1:0.9.8+bzr3319-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-12.12-generic 3.5.2
Uname: Linux 3.5.0-12-generic x86_64
ApportVersion: 2.5.1-0ubuntu2
Architecture: amd64
Date: Mon Aug 27 15:43:34 2012
DistUpgraded: 2012-08-26 18:31:05,632 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI M96 [Mobility Radeon HD 4650] [1002:9480] (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c050]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: SAMSUNG ELECTRONICS CO., LTD. R520/R522/R620
ProcCmdline: Compiz
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-12-generic root=UUID=38efdbe1-8530-472f-b010-14da1adae1b4 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fd4e1d829c4: movzbl (%rdi),%eax
 PC (0x7fd4e1d829c4) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 GLScreen::GLScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
 PluginClassHandler<GLScreen, CompScreen, 4>::get(CompScreen*) () from /usr/lib/compiz/libopengl.so
 CompPlugin::VTableForScreenAndWindow<GLScreen, GLWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
 CompManager::initPlugin(CompPlugin*) () from /usr/lib/libcompiz_core.so.ABI-20120603
Title: compiz crashed with SIGSEGV in GLScreen::GLScreen()
UpgradeStatus: Upgraded to quantal on 2012-08-26 (0 days ago)
UserGroups:

dmi.bios.date: 09/16/2009
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 05LL.M025.20090916.Jay
dmi.board.name: R520/R522/R620
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr05LL.M025.20090916.Jay:bd09/16/2009:svnSAMSUNGELECTRONICSCO.,LTD.:pnR520/R522/R620:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR520/R522/R620:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: R520/R522/R620
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.8+bzr3319-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.38-0ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0~git20120821.c1114c61-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0~git20120821.c1114c61-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.905-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.3-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1

[Apport retracing service (apport)]

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 #944653, 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.