[Bug 90963] i915:No display with Display port [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90963

--- Comment #24 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
(In reply to Alex GERARD from comment #23)
> I have the same problem using:
> Software :
> - Linux 4.2.0 (From updated Debian stretch/testing) with
> i915.preliminary_support=1
> - xf86-video-intel: 2.99.917 OR Git from 2015.10.19 from debian experimental)
> - Dell U3415W (again !) via DP 1.2 (no MST *usage*)
> 
> Hardware :
> - Asrock H170 Pro4
> - Intel *Skylake* i7 6700
> 
> The whole system freezes after giving the exact same error as reported here.
> 
> I have tried Linux 4.3rc7 too without success (I did not managed to catch
> the entire kernel output debug via NetConsole this time before freezing).
> 
> Hope it will help.

The freeze you have is probably unrelated to the link training failure, so
please open a separate bug report. The following patch might help:

http://patchwork.freedesktop.org/patch/57419/

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