Main Menu->Shutdown->Restart hangs, doesn't shutdown or restart

[Colin Leavett-Brown]

Binary package hint: xorg

Can ssh to desktop minutes after the restart/hang.
Machine never restarts.
Expect the machine to restart immediately.
Main Menu->Shutdown->Shutdown does halt the machine.
Ubuntu 10.10
Core i3 540 with integrated HD graphics, Intel DH57JG mobo.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-23.41-generic-pae 2.6.35.7
Uname: Linux 2.6.35-23-generic-pae i686
Architecture: i386
DRM.card0.DisplayPort.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.DisplayPort.2:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.HDMI_Type_A.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.HDMI_Type_A.2:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x768 800x600 800x600 848x480 640x480
 edid-base64:
Date: Tue Nov 30 22:49:17 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-23-generic-pae root=UUID=3ecb73c5-3f4a-47b9-84b4-5d0c11c466a3 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_CA.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
dmi.bios.date: 01/20/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: JGIBX10J.86A.0217.2010.0120.2350
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DH57JG
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE70930-302
dmi.chassis.type: 2
dmi.modalias: dmi:bvnIntelCorp.:bvrJGIBX10J.86A.0217.2010.0120.2350:bd01/20/2010:svn:pn:pvr:rvnIntelCorporation:rnDH57JG:rvrAAE70930-302:cvn:ct2:cvr:
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: maverick
 architecture: i686
 kernel: 2.6.35-23-generic-pae