loading amfgpu results in immefiate power off on 12.3-STABLE r371721

This probably isn't the correct list. But it's the closest of
all the lists I'm subscribed to. Please forgive me.
OK so here's what happened. I couldn't get the trackpad on a
Dell laptop I just got to work in FreeBSD-13. So after a couple
of days, I gave up and tried 12.3-STABLE r371721 today. Once I got
the network (wifi) going. I pkg installed drm-kmod && it's depends.
Added kld_list="amdgpu" to rc.conf && rebooted. The moment it
loaded, the screen went black and it powered off. Booted to
single-user, fsck && cp /var/log/messages to ~/ .
I'm attaching a copy in case it sheds any light on the cause.
The most interesting thing about all this, is that amdgpu
worked flawlessly on 13 -- go figure.

Thanks!

--Chris