Re: How to get amdgpu dimgrey cavefish working?

From: Pat Maddox <pat_at_patmaddox.com>
Date: Tue, 13 Dec 2022 03:03:32 UTC 
On 12 Dec 2022, at 18:43, Pat Maddox wrote:

> I have a Radeon RX 6600 which to my understanding is Navi 23 / dimgrey 
> cavefish.
>
> I have built drm-kmod using poudriere, which also got me 
> gpu-firmware-amd-kmod-dimgrey_cavefish.
>
> I have run `kldload amdgpu`, as well as added it to kld_list in 
> rc.conf
>
> When I run `startx` I get “Cannot run in frame buffer mode. Please 
> specify busIDs for all framebuffer devices.”
>
> I’m not sure what to do. I believe my car is dimgrey cavefish, and I 
> have the dimgrey cavefish drivers.
>
> How do I load / use them?

Some potentially interesting lines from Xorg.0.log:

     PCI: *(3@0:0:0) 1002:73ff:1da2:e451 rev 199, Mem @ 0x4000000000 / 
268435456, 0x4010000000 <SNIP> BIOS @ 0x????????/65536

     Failed to load module “ati” (module does not exist, 0)

     open /dev/dri/card0: No such file or directory

Pat