Things should have been changed with the fix "Allow frame buffers up to 4096x4096". Can you try xf86-video-intel 2.8.x and kernel 2.6.31-rc?
Things should have been changed with the fix "Allow frame buffers up to 4096x4096". Can you try xf86-video-intel 2.8.x and kernel 2.6.31-rc?