[Bug 60263] [IVB] Apple DP to dual link DVI: [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=60263

--- Comment #12 from Ronald Moore <dr.ronald.moore at gmail.com> ---
(In reply to comment #11)
> Ronald, could you test with the attached patch if it makes any difference?

Yes, I could; yes, I did; and yes, it does! My Display-Port Adapter works now!
That seems to be the fix we've been looking for!

(That was the short version - here some details...)

I tried this patch both with the DRM-Intel-Nightly-Branch (3.10.0-rc7) and with
the stock arch linux kernel (3.9.9), and the results seemed the same: It works,
both with external monitors and with a projector.  Plug-and-play: I plug the
cable into the adapter, the adapter into the notebook, and within a second or
three the external display lights up.

Curiosity: The log messages "*ERROR* too many tries, giving up" still appear,
although everything is working.

Irritation: xrandr, arandr and the Gnome-3-Displays-Settings Interface to
xrandr (what is the proper name for that thing?) all consider the external
displays to be "unknown" and refuse to offer a resolution larger than 1024x768.
 Using xrandr I managed to blank out both screens (notebook and external) until
I unplugged the adapter - but this is a problem I have hardly begun to look at,
and which I may just decide to live with: My main external monitor has an hdmi
cable and that works (has worked the whole time) just fine (and 1024x768 is
just barely enough for presentations with a projector).

So, if you need any more information, log files, whatever, please let me know
what you need, but I'm happy - for the time being.  Mostly I'm curious now when
this patch will make it's way into the stock kernels!

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130711/21245bab/attachment.html>