[Bug 62564] [HD 4000] triple monitor configuration - resolutions above 1024x768 hangs/locks kernel and/or xserver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62564

--- Comment #4 from nadrimajstor <ipejic at gmail.com> ---
(In reply to comment #1)
> Infinite loops in DP link training should be fixed with
> 
> commit 3b4f819d5eac94ba8fe5e8c061f6dabfe8d7b22c
> Author: Takashi Iwai <tiwai at suse.de>
> Date:   Mon Mar 11 18:40:16 2013 +0100
> 
>     Revert "drm/i915: try to train DP even harder"
> 
> Which is only yet available in the drm-intel-fixes branch of
> 
> http://cgit.freedesktop.org/~danvet/drm-intel
> 
> but it's on the way to upstream and tagged for stable backporting. Can you
> please retest with that patch/revert?

Retested. I can confirm - this patch/revert solved this issue.
(tried on ubuntu 12.04.2 with kernel 3.5.0-26-generic #42~precise1)

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