Xorg crashed with SIGSEGV in BlockHandler()

[John Schanlaub]

When I try to watch a YouTube video with firefox it will be fine for a couple minutes then the screen goes black. A few seconds later i am at the sign in screen again and I have to log back in. I disabled the Nvidia driver and it still does it, I have since reloaded the Nvidia driver. An error window came up while viewing a video and I am sending the error log.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-core 2:1.11.4-0ubuntu10
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 295.40 Thu Apr 5 21:37:00 PDT 2012
 GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu4)
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Sun Apr 15 01:34:34 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 295.40, 3.2.0-23-generic, x86_64: installed
ExecutablePath: /usr/bin/Xorg
GraphicsCard:
 NVIDIA Corporation G86 [GeForce 8500 GT] [10de:0421] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:050e]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120414)
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 002: ID 0bda:0111 Realtek Semiconductor Corp. Card Reader
MachineType: Hewlett-Packard D5468AT-ABA ALONPAV
ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=eeb62c72-fbc1-469e-a6c1-90c28fb766a2 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f1bd19d96a9: mov 0x68(%rax),%rdx
 PC (0x7f1bd19d96a9) ok
 source "0x68(%rax)" (0xff000000ff000068) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: nvidia-graphics-drivers
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
 BlockHandler ()
 WaitForSomething ()
 ?? ()
 ?? ()
Title: Xorg crashed with SIGSEGV in BlockHandler()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

XorgConf:
 Section "Device"
  Identifier "Default Device"
  Option "NoLogo" "True"
 EndSection
dmi.bios.date: 05/22/2009
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 5.29
dmi.board.name: Nettle3
dmi.board.vendor: ECS
dmi.board.version: 2.1
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr5.29:bd05/22/2009:svnHewlett-Packard:pnD5468AT-ABAALONPAV:pvr1331211RE101EXPLO0:rvnECS:rnNettle3:rvr2.1:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: D5468AT-ABA ALONPAV
dmi.product.version: 1331211RE101EXPLO0
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.7.6-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

Stacktrace:
 #0 0x00007f1bd19d96a9 in ?? ()
 No symbol table info available.
 #1 0x0000000000000000 in ?? ()
 No symbol table info available.
StacktraceTop:
 ?? ()
 ?? ()