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Re: amdgpu driver



On Wed 01 Jul 2026 at 12:13:51 -0400, MLH wrote:
> 
> I have been using an ATI Radeon HD 5450 since 2020 and my original xorg.conf
> from then didn't specify a Device section and it worked fine up until about
> two years ago when several programs started trashing the window they were
> operating in (but not the rest of the display though).

I have the same card, and I have used it mostly successfully up to
NetBSD 9; with 10 I started to have complete display corruptions and
stalls after a few weeks of uptime (i.e. very hard to debug). I never
used the amdgpu driver, as I understand it it is for newer AMD cards.

Up to 9.x I used Driver "radeon".

From 10.0 on I used Driver "modesetting", which potentially needs Option
"kmsdev" "/dev/dri/card0" when I enable both the Radeon and the
on-board Intel graphics chipset in the "BIOS".

The reason to switch to modesetting was that something didn't quite work
any more, but it seems I didn't write down what it was.

If you don't have the Device section in xorg.conf, and want to determine
from the log file which driver was used, you have to look carefully.
Lots of drivers are loaded, but also a lot are unloaded again and not
used. Unfortunately you left that part out of your logfile fragment, but
from this single line I think you were using the radeon driver:

> [  4022.877] (II) RADEON: Driver for ATI/AMD Radeon chipsets:

I am curious if you also get the corruptions with the "radeon" driver. I
had to switch to the integrated Intel graphics, but that lacks support
for whatever x11/redshift does, and also I can't use mpv in gpu mode,
but I have to use "vo=xv" in ~/.config/mpv/mpv.con. Likewise, wip/golly
doesn't display its life world. So I'd rather switch back. 

-Olaf.
-- 
___ Olaf 'Rhialto' Seibert                            <rhialto/at/falu.nl>
\X/ There is no AI. There is just someone else's work.           --I. Rose

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