[Bug 253801] graphics/drm-fbsd13-kmod panic when resuming from sleep

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253801

--- Comment #5 from Patricio Villar <patovm04 at gmail.com> ---
13.0-RC2 and RC3 were nearly flawless and this issue became really hard to see.
Unfortunately, 13.0-RC4 brought a big regression in this regard. It now happens
most of the time!

At least, I think I was able to understand a little bit more:
When resuming, if I see this console message: "drmn0: Failed to idle engines,
declaring wedged!" then it completely fails to resume X.

Whereas, when the above line doesn't appear and this other line still shows:
"i915 raw-wakerefs=3 wakelocks=3 on cleanup" then it looks like all is fine for
a few seconds, but after a while, Xorg is killed and restarted all of a sudden
and I'm right back at my display manager (SDDM).

Any ideas?

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