On Fri, 13 May 2011 12:14:54 -0400, Andy Lutomirski wrote: > My Q67 / i7-2600 box has rev09 Sandy Bridge graphics. It hangs > instantly when GNOME loads and it hangs so hard the reset button > doesn't work. Setting i915.semaphore=0 fixes it. Can you describe precisely what hardware you have? The make and model of the motherboard and the exact model of CPU? I'd like to get this issue resolved for 2.6.40 and need to have a reliable way to reproduce the hang; replicating your hardware may be a good way of doing that. -- keith.packard@intel.com