Comment 5 for bug 516909

This seems like a GPU hang. There is more information about how to get the information we need (especially a batchbuffer dump) for this kind of bug at https://wiki.ubuntu.com/X/Troubleshooting/Freeze . In order to do anything about it we need to get it tested on Lucid, and since this is a very new chipset which is only officially supported from kernel 2.6.33 (Lucid ships with 2.6.32), I would like you to test this with that kernel, available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D (more information at https://wiki.ubuntu.com/KernelTeam/MainlineBuilds).

Sam, the bug is probably in the kernel, or -intel driver, or a combination of the two.