[09:28] I've been trying to get a write-combining mtrr for X to play with. Found https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/314928 but my problem is different. All 8 mtrr's are used by kernel (like /comments/9) -- none left for X :-( Anyone know which driver/bios/? decides it needs all the mtrr's?