Hi Andrew, Andrew O. Shadoura wrote: > The bugs is reported to be fixed here: Thanks! (For reference, the link was to a backport of v2.6.39-rc2~3^2~13, drm/i915: Fix tiling corruption from pipelined fencing, 2011-03-17.) If you find time to test a recent kernel from sid or experimental (which would include the fix), that would be excellent. Thanks for catching this.