Comment 14 for bug 812638

Can you please run apport-collect 812638 to attach your logs here so we can see more of what is going on? Sandybridge isn't supported in lucid so we have no idea what kind of userspace packages you are using, and with 2.6.38-11 and natty-proposed xserver-xorg-video-intel I can't reproduce this at all on a t420s