On Thu, 29 Oct 2015, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> This series eliminates all spurious PCH FIFO underrun reports on my
> machines during a BAT run ('-t basic -x reload -x suspend' actually).
> It also eliminates the non-spurious but expected underrun reports
> on ILK.
>
> I also embarked on a small scale cleanup of the CPU eDP PLL code while
> I was trying to get to the bottom of the underruns on ILK. So I figured
> I'd include that work here as well.
>
> I've tested this on ILK, SNB, two IVBs, and one HSW, with as many
> displays plugged in as possible. What I could actually test is HSW/BDW
> CRT output since I have no machine for that.
>
> The series is available here:
> git://github.com/vsyrjala/linux.git pch_fifo_underrun_fix_4
I spammed "a few" potentially relevant bugs with test requests:
https://bugs.freedesktop.org/show_bug.cgi?id=74102
https://bugs.freedesktop.org/show_bug.cgi?id=85906
https://bugs.freedesktop.org/show_bug.cgi?id=88977
https://bugs.freedesktop.org/show_bug.cgi?id=89518
https://bugs.freedesktop.org/show_bug.cgi?id=89806
https://bugs.freedesktop.org/show_bug.cgi?id=90239
https://bugs.freedesktop.org/show_bug.cgi?id=90307
BR,
Jani.
--
Jani Nikula, Intel Open Source Technology Center
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