Hi All, I've been hunting around for information on how to help debug the issue I'm having - Hopefully someone here can help My setup is: - ASRock Z68 Pro3 Gen3 motherboard - i5 2500K CPU - Fedora 16 - Vanilla 3.2.0+ kernel (commt ccb19d263fd1c9e34948e2158c53eacbff369344) I'm experiencing frequence total system freezes (not even reset button works). I originally thought it was a power management problem because the freezes only seemed to occur after leaving the system idle for a while, but recently the freezing seems to be happening even when the machine is in full use. I have not seen many other reports involving the Z68/HD3000 combination yet. I have submitted a bug report on the kernel bugzilla tracker: https://bugzilla.kernel.org/show_bug.cgi?id=42597 This has /var/messages and Xorg logs, but neither show anything particularly interesting (no oops for example) I've tried netconsole, but no additional messages are appearing there either. I've also tried i915.semaphores=1 to no avail So I'm open to all and sundry suggestions. I'm willing to build and run developmental / experimental code, apply patches etc to help identify the problem / test potential solutions. Regards, Graeme