[Bug 91393] [bdw edp] Screen Flickering

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91393

--- Comment #42 from Tom Furniss <furniss.tom at gmail.com> ---
(In reply to Mika Kahola from comment #36)
> Created attachment 120109 [details] [review]
> DP configuration check
> 
> This patch adds additional test and disables fast link training feature if
> DP link parameters such as link bandwidth, rate selection, lane count, port
> clock and bpp. If one of these parameter change the fast link training is
> disabled and link is retrained with the link training parameters starting
> from zero values. Please, give this patch a go and report back with dmesg if
> flickering still exists.

Hi Mika.  Your second patch also fixes the problem for me.  After removing your
first patch and applying the second the flickering issue did not recur.

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