For me, the workaround to #1165232 as shown below seems to resolve the problem:
Alternative solution: Install this package from PPA mediahacks: https://launchpad.net/~dtl131/+archive/mediahacks/+files/xserver-xorg-video-openchrome_0.3.2-0ubuntu1_i386.deb -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-openchrome in Ubuntu. https://bugs.launchpad.net/bugs/1086035 Title: [VM800/P4M800Pro/VN800/CN700] X fails to start after upgrade Status in “xserver-xorg-video-openchrome” package in Ubuntu: Confirmed Bug description: After upgrade to Ubuntu 12.10 the X server failed to start which worked fine before. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic i686 ApportVersion: 2.6.1-0ubuntu6 Architecture: i386 Date: Mon Dec 3 17:42:49 2012 InstallationDate: Installed on 2012-03-30 (248 days ago) InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release i386 (20111011) MarkForUpload: True SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to quantal on 2012-05-23 (194 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-openchrome/+bug/1086035/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
