Re: amdgpu driver

On Sun, 5 Jul 2026, MLH wrote:

> MLH wrote:
>> I decided it is time to update the gfx and found a new Radeon R7
>> 350 2G that the amdgpu docs and wikipedia indicate is amdgpu-supported
>> so just ordered that.  Hopefully it will work properly.
>
> I installed the new card listed as a Radeon R7 350 HDMI (shows to be a 250):
>
> [     1.036698] radeon0 at pci11 dev 0 function 0: ATI Technologies Radeon HD 7750/8740 / R7 250E (rev. 0x00)
> [     1.036698] hdaudio0 at pci11 dev 0 function 1: HD Audio Controller
> [     1.036698] hdaudio0: interrupting at msi4 vec 0
> [     1.036698] hdaudio0: HDA ver. 1.0, OSS 6, ISS 0, BSS 0, SDO 2, 64-bit
> [     1.036698] hdafg0 at hdaudio0: ATI R6xx HDMI
> [     1.036698] hdafg0: HDMI00 2ch: Digital Out [Jack]
> [     1.036698] hdafg0: HDMI01 2ch: Digital Out [Jack]
> [     1.036698] hdafg0: 2ch/0ch 32000Hz 44100Hz 48000Hz PCM16 AC3
> [     1.036698] audio0 at hdafg0: playback
> [     1.036698] audio0: slinear_le:16 2ch 48000Hz, blk 1920 bytes (10ms) for playback
> [...]
>

This shows the HDMI audio info. Can you `boot -vx` and post

1. /var/run/dmesg.boot
2. /var/log/Xorg.0.log
3. sudo pcictl pci0 list -N

> Just as with my old card, if I specify the driver, xdm won't start.
>
> Unfortunately this new card is a little worse than the old.
> [...]
>

If you're going to force-load a DDX module, load the "modesetting" driver.
That's what Linux, FreeBSD and OpenBSD use with DRMKMS.

-RVP