maintainer-feedback requested: [Bug 268344] graphics/drm-kmod: amd dimgrey_cavefish drivers don't load

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 13 Dec 2022 03:51:44 UTC
Bugzilla Automation <bugzilla@FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11@FreeBSD.org> for maintainer-feedback:
Bug 268344: graphics/drm-kmod: amd dimgrey_cavefish drivers don't load
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268344



--- Description ---
I have a Radeon RX 6600.

According to https://www.techpowerup.com/gpu-specs/radeon-rx-6600.c3696 it is
Generation: Navi 2, Codename: Dimgrey Cavefish.

I used poudriere to build graphics/drm-kmod. It created a bunch of packages,
including gpu-firmware-amd-kmod-dimgrey-cavefish. I installed drm-kmod, which
brought along all of the driver packages.

When I run `kldload amdgpu` I get a single line of output: "[drm] amdgpu kernel
modesetting enabled."

`startx` fails with “Cannot run in frame buffer mode. Please specify busIDs for
all framebuffer devices.”

I'm not sure what other diagnostic info would be helpful. It appears that the
drivers are present, but they are not being loaded.