[Bug 103229] SKL screen flicker and dmesg [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=103229

--- Comment #34 from Graham Northup <grahamnorthup at yahoo.com> ---
Hello from kernel 5.1.3! I have different hardware from this poster, but the
same symptoms--the noted line in dmesg, and screen flicker on the local output.
The device is a Surface Pro 1 (notoriously good Linux support, I know); I have
the output of lshw, lscpu, dmesg, my .config, etc. if anyone wants them to be
in this report.

This isn't a Fedora system, but I'm more than happy to let this be the test
monkey for any fixes.

So far, my workaround has been passing "nomodeset" and letting the kernel hang
onto the efifb. Of course, without DRM/KMS, most graphical environments don't
work.

I've also tried the other two workaround parameters (i915.enable_dc=0 as an
interpretation of one, and intel_idle.max_cstate=4 verbatim) to no avail. I'd
love to try https://bugs.freedesktop.org/show_bug.cgi?id=108462#c18, but I'm
not sure which kernel configs to twiddle to make that show up.

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