Xorg crashed with SIGSEGV in XIGetDeviceProperty()

This occurred after I left the machine to go to sleep, then tried to resume. The machine wouldn't boot back up, so I had to hold the power button to force it to turn off, then push again to get it back online.

The error notice occurred when I logged back in.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: xserver-xorg-core 2:1.12.1.902-1ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-5.5-generic 3.5.0-rc7
Uname: Linux 3.5.0-5-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.4-0ubuntu4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CrashCounter: 1
Date: Fri Jul 20 23:29:33 2012
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, if not too technical
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 12.10 "Quantal Quetzal" - Alpha amd64 (20120606.2)
MachineType: LENOVO 2801CTO
ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-5-generic root=UUID=8e3bb135-1892-48c8-a763-68e22c48593d ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f4230c01c58 <XIChangeDeviceProperty+440>: mov 0x10(%r15),%rax
 PC (0x7f4230c01c58) ok
 source "0x10(%r15)" (0x7f4200000010) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 XIGetDeviceProperty ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: Xorg crashed with SIGSEGV in XIGetDeviceProperty()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 11/27/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6HET27WW (1.12 )
dmi.board.name: 2801CTO
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:bvr6HET27WW(1.12):bd11/27/2009:svnLENOVO:pn2801CTO:pvrThinkPadT400s:rvnLENOVO:rn2801CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2801CTO
dmi.product.version: ThinkPad T400s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.37-0ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.12.1.902-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~really6.14.4-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.19.0-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-1build1