[Bug 278613] ASUS PRIME X570-PRO and AMD Ryzen 7 5700G fails to enter S3 with 14.0-RELEASE-p6

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 27 Apr 2024 19:01:42 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278613

--- Comment #3 from Enji Cooper <ngie@FreeBSD.org> ---
I just tried out the USB mini sticks on the following versions of FreeBSD:
- 13.3-RELEASE:
-- zzz works.
-- No VGA console output.
- 14.0-RELEASE:
-- zzz works (!).
-- No VGA console output.
- 14.1-PRERELEASE 20240425-9857f824ec77-267512:
-- zzz works.
-- No VGA console output.

I'm not entirely sure if VGA console after exiting S3 ever worked with this
motherboard/CPU combo, to be frank, since most of the time I treat this host
like a headless box; I'll save that issue for another bug.

So, something changed between 14.0-RELEASE and 14.0-RELEASE-p6, OR one of the
drivers/subsystems is failing to enter suspend properly (I am leaning more
towards this possibility). I'll check to see if ada, graid, if_igb, or nvd with
the USB stick image is causing problems when I get back sometime next week.

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