The upstream bug report hasn't imported the new comments yet, but they found this was related to https://bugzilla.kernel.org/show_bug.cgi?id=47641 also so it broke dithering on a HP EliteBook 2540p. Intel has reverted this commit with http://cgit.freedesktop.org/~danvet/drm-intel/commit/?id=2f4f649a69a9eb51f6e98130e19dd90a260a4145 (which is not yet in Linus' tree yet) because it broke more than it fixed and they need another workaround for the one machine it did fix.
The upstream bug report hasn't imported the new comments yet, but they found this was related to https:/ /bugzilla. kernel. org/show_ bug.cgi? id=47641 also so it broke dithering on a HP EliteBook 2540p. Intel has reverted this commit with http:// cgit.freedeskto p.org/~ danvet/ drm-intel/ commit/ ?id=2f4f649a69a 9eb51f6e98130e1 9dd90a260a4145 (which is not yet in Linus' tree yet) because it broke more than it fixed and they need another workaround for the one machine it did fix.