Daniel, > Depending upon how things are set up, this might help. Yeah, thanks a lot, works great now! I removed patch 3/4 and 4/4 and pushed this one; so currently applied are: [PATCH 1/4] drm/i915: clear up backlight inversion confusion on gen4 [PATCH 2/4] drm/i915: completely revert the invert brightness quirk [PATCH] properly enable the blc controller on the right pipe Can you pick these three patches? Thanks, -Carsten.