On Wed, 21 Sep 2011 11:56:31 -0700 (PDT), Hugh Dickins wrote: > I wonder if you're right to disable it just for INTEL_INFO(dev)->gen == 5. > On this laptop I have INTEL_INFO(dev)->gen == 4, and have had to boot with > i915.i915_enable_fbc=0 since 3.1-rc1 for my xterms to be reliably > updated. I should probably just enable it only for newer hardware that appears to have reliable FBC. -- keith.packard@intel.com