[Bug 99908] [i915] driver crashes with dual 4k monitors on Intel HD 520

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99908

--- Comment #7 from Phil Hord <phil at phord.com> ---
Now with 2 months of experience, I can say:
  This crash _never_ occurs in 30hz refresh rate modes.
  This crash _always_ occurs in 60hz modes when both monitors are in 4k
resolution.

Today I tried to capture the failure reported in syslog but unfortunately
syslog doesn't even flush when this hits.  I don't have a UART console
available for testing this at work where my 4k monitors live; maybe I can
cobble something together with a raspi module.

I initially tried to collect more detailed and up-to-date information for this
bug report by following the build guides at
https://01.org/linuxgraphics/documentation/build-guide-0.  Somewhere during
that process I hosed my boot config and could no longer boot at all.  I may
have some time coming up and can give it another go, this time on a secondary
partition.

I am happy to provide more info if there's something specific that would help
you.

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