[Bug 56834] [ivb DP dual link DVI dongle regression] [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56834

--- Comment #44 from Anthony Foiani <anthony.foiani+freedesktop at gmail.com> ---
Ok, that's ... peculiar.

I got the appropriate adaptor for my other adapter (a mini-displayport one),
and it works fine on my Fedora 19 box.  This adapter is:

Kanex iAdapt C30 MDPC30 Mini DisplayPort to DVI Adapter + USB for Apple Cinema
Display 30-Inch
http://www.amazon.com/Kanex-MDPC30-DisplayPort-Adapter-Display/dp/B0045I85GY

It worked with my macbook as well (although it would sometimes fail to come out
of sleep properly -- haven't had this one connected here long enough to tell...
but the one I'm replacing would sometimes come back in an unstable state as
well, with glitchy pixels everywhere.)

It's not as reliable with Windows 7 on the same machine, though; the previous
adapter was rock solid under Windows, while this one has had issues (fine
vertical white lines once, sleep mode the second time -- but power cycling the
adapter solved the latter).

If one of the devs would like the original adapter (that does not auto-play
with linux at all, and seems to have gotten worse recently), I can try to ship
it to them.

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