[Bug 94605] [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94605

--- Comment #80 from Peter Wu <peter at lekensteyn.nl> ---
(In reply to Mauro Santos from comment #79)
> (In reply to syphyr from comment #77)
> > The pipe underruns are now fixed in latest stable 4.8.6 kernel with the
> > following commits;
[..]
> You mean that the latest stable 4.8.6 kernel already has these fixes or that
> they will be included in 4.8.7?

"Fixed in the latest stable 4.8.6 kernel".
If you follow the links, you see the message "commit xyz upstream" which hints 
that it got backported. See also the changelog in
https://lwn.net/Articles/705130/

> Because if they are included in 4.8.6 they don't fix the problem, I'm still
> seeing "[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A
> FIFO underrun" quite frequently with the accompanying screen flicker.

Under what circumstances? Any special cmdline, patches or userspace packages?
So far it seems to work for me (i7-6700HQ, Arch Linux, 4.8.6-1).

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