[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 #4 from Ronald Moore <dr.ronald.moore at gmail.com> ---
Created attachment 78876
  --> https://bugs.freedesktop.org/attachment.cgi?id=78876&action=edit
dmesg with debug=14, using drm-intel-nightly branch as of Sun 5 May 2013

I'm having this problem too, so I downloaded the drm-intel-nightly branch.  

Good news: Hardly any error messages "*ERROR*" too many retries..." (etc.).

Bad News: Absolutely no connection made to my external monitor over the Apple
DP connector.

Hardware: I'm using a Lenova Think Pad S430, which uses "Intel® Ivybridge 
Mobile" graphics.  I'm trying to connect an external monitor via an Apple DP to
VGA connector (so, not exactly the same hardware discussed above, but very
similar symptoms - if the difference means this is the wrong ticket, sorry,
please instruct as to where I should post this).  

My "real" use-case is a little different - I need to connect to the projectors
at work.

By the way, I have a work-around that works most of the time - downgrade to the
3.6.11 kernel - the last kernel that came with a "normal" Arch Linux upgrade
which works.  After that came the 3.7 and 3.8 kernels, and none of those have
worked with my hardware.

Here's what I did: I connected the Apple connector.

I'll attach the Xorg.0.log next.

-- 
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/20130505/81eafe4c/attachment.html>