Here's the info on the currently working version of my intel driver too, which forgot to include in the last comment - note this is the version from the ubuntu-x-swat ppa repository - instructions for installing this above...
$ apt-show-versions -a xserver-xorg-video-intel xserver-xorg-video-intel 2:2.7.1-0ubuntu1~xup~1 install ok installed xserver-xorg-video-intel 2:2.6.3-0ubuntu9 jaunty archive.ubuntu.com xserver-xorg-video-intel 2:2.6.3-0ubuntu9.3 jaunty-updates archive.ubuntu.com xserver-xorg-video-intel 2:2.7.1-0ubuntu1~xup~1 unknown ppa.launchpad.net xserver-xorg-video-intel/unknown uptodate 2:2.7.1-0ubuntu1~xup~1 -- UXA Sporadic Freezes on Sony Vaio with 855GM https://bugs.launchpad.net/bugs/423663 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs