Comment 8 for bug 149791

Same bug here with intel video card, I had to downgrade to make it work again (downgrading the intel driver wasn't enough, the kernel was probably to blame):
 7487 sudo dpkg -i /var/cache/apt/archives/linux-image-generic_2.6.22.14.20_i386.deb
 7488 sudo dpkg -i /var/cache/apt/archives/linux-image-2.6.22-14-generic_2.6.22-14.43_i386.deb
 7489 sudo dpkg -i /var/cache/apt/archives/linux-ubuntu-modules-2.6.22-14-generic_2.6.22-14.36_i386.deb
 7490 sudo dpkg -i /var/cache/apt/archives/xserver-xorg-video-intel_2%3a2.1.1-0ubuntu8_i386.de