compiz crashed with SIGSEGV in GridScreen::handleEvent()

[peter swain]

after apt-get update.
Couldn't find a valid screen resolution, so I suspect solution is to drop the old xorg.conf & let it re-setup

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: compiz-core 1:0.9.9~daily13.04.05-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
Date: Mon Apr 8 23:37:42 2013
DistUpgraded: 2013-03-02 11:10:46,877 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
DkmsStatus:
 nvidia-304-updates, 304.84, 3.8.0-12-generic, x86_64: installed
 nvidia-304-updates, 304.84, 3.8.0-13-generic, x86_64: installed
 nvidia-304-updates, 304.84, 3.8.0-17-generic, x86_64: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 NVIDIA Corporation NV44 [Quadro NVS 285] [10de:0165] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: NVIDIA Corporation Device [10de:0334]
InstallationDate: Installed on 2012-06-01 (311 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: Hewlett-Packard HP xw8400 Workstation
MarkForUpload: True
ProcCmdline: compiz
ProcCwd: /local-home/swine
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-18-generic root=/dev/mapper/isw_dbaejeggfe_Volume0p1 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f30aa4f9477 <_ZN10GridScreen11handleEventEP7_XEvent+2375>: mov 0x30(%rax),%rdx
 PC (0x7f30aa4f9477) ok
 source "0x30(%rax)" (0x00000030) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 GridScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libgrid.so
 CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20130125
 WorkaroundsScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libworkarounds.so
 CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20130125
 CompScreenImpl::alwaysHandleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20130125
Title: compiz crashed with SIGSEGV in GridScreen::handleEvent()
UnitySupportTest:
 Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 5: Xlib: extension "GLX" missing on display ":0".
 Error: GLX is not available on the system
UpgradeStatus: Upgraded to raring on 2013-03-02 (37 days ago)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
XorgConf:
 Section "Device"
  Identifier "Default Device"
  Option "NoLogo" "True"
 EndSection
dmi.bios.date: 09/21/2007
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786D5 v02.26
dmi.board.name: 0A08h
dmi.board.vendor: Hewlett-Packard
dmi.board.version: NA
dmi.chassis.asset.tag: 2UA80501SX
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr786D5v02.26:bd09/21/2007:svnHewlett-Packard:pnHPxw8400Workstation:pvr:rvnHewlett-Packard:rn0A08h:rvrNA:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP xw8400 Workstation
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.9~daily13.04.05-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
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: Mon Apr 8 23:37:12 2013
xserver.configfile: /etc/X11/xorg.conf
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.13.3-0ubuntu5

[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 #1054049, 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.