At Tue, 6 Aug 2013 13:51:32 +0100, Chris Wilson wrote: > > On Tue, Aug 06, 2013 at 02:40:24PM +0200, Takashi Iwai wrote: > > We've seen a problem that the DP port on a docking station is often > > not detected properly or misconfigured (no proper native modes) with a > > Haswell-based laptop. The trace showed that the driver gave up or got > > only insufficient EDID, maybe due to some unstable aux communication. > > > > As a band-aid fix, increase the number of retries from 5 to 10. > > This seems enough for our cases. > > Did you test with > > commit bc86625a4ff7574d4d4dba79723457711eb784e0 > Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Date: Sun Jul 21 16:00:03 2013 +0100 > > drm/i915: Retry DP aux_ch communications with a different clock after failures > > That sounds like a relevant workaround. This seems also stabilizing the DP detection. Will check more and give back if I still encounter a problem. Thanks! Takashi _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
