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 <[email protected]> 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. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
