[Bug 269510] Problem with amdgpu kernel module after upgrading FreeBSD 13.1 system

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269510

            Bug ID: 269510
           Summary: Problem with amdgpu kernel module after upgrading
                    FreeBSD 13.1 system
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: riza.dindir@gmail.com

Hardware:
AMD FX7500 CPU
AMD Radeon R7 M265, with two graphics devices. One device is the Kaveri [Radeon
R6/R& Graphics]
with PCI id 0x002 0x1309. The other is the Opal XT (oland) [Radeon R7
M265/M365X/M465].

OS:
FreeBSD, 13.1-RELEASE, FreeBSD 13.1-RELEASE, releng/13.1-n250148-fc952ac2212,
GENERIC, amd64

What Happened:

Wanted to upgrade all the packages on my system. I have run "pkg upgrade". The
command did these:

1. Upgraded pkg from 1.18.4 to 1.19.0
2. Removed (deinstalled) the drm-fbsd13-kmod-5.1.191.g20220604_1.
3. Upgraded all the gpu-firmware-amd-kmod-* packages from version 20220511 to
20221207_1.
4. Installed drm-510-kmod-5.10.113_8.
5. Upgraded drm-firmware-kmod from 20220511,1 to 20221208-1,1.

Prior to the upgrade I have been loading the amdgpu kernel module in the
rc.conf file. kld_list="amdgpu".

After the upgrade, I restarted the system. The system halted at the "loading
kernel modules" message,
and a line of colored pixels at the right lower part of the LCD screen
(laptop).

Restarted the system, Went into the single user mode. Did fsck and "mount -u /"
and removed the amdgpu from kld_list to prevent it from loading. Then restarted
the system.

After boot I did the update and upgrade again by doing these things:

1. pkg update -f
2. pkg install drm-510-kmod
3. pkg install drm-kmod (which also pulls the gpu-firmware-kmod package).
4. pkg upgrade -f

All the packages were forcefully upgraded.

Then changed kld_list to load the radeonkms kernel module
(kld_list="radeonkms").

After changing the kernel module, the system started normally and the graphics
devices were initialized correctly.

On the https://wiki.freebsd.org/Graphics page it is stated that the radeonkms
kernel module
is for older GPU's (pre-HD7000 or pre-Tahiti). I am not sure if my card is
pre-Tahiti, or pre-HD7000. I think they might be newer.

Being able to use the amdgpu kernel module prior to the package upgrade and
having to use radeonkms after the upgrade might indicate a bug in the amdgpu
kernel module.

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