Re: 11-BETA, WebGL, modesetting and Radeon HD-5450: breaks X

Rhialto <[email protected]> Sun, 12 Oct 2025 21:15:10 +0200
Newsgroups	gmane.os.netbsd.current
Message-ID	<[email protected]>
On Sun 12 Oct 2025 at 18:27:40 +0100, Robert Swindells wrote:
> Rhialto <[email protected]> wrote:
> > On Sun 12 Oct 2025 at 15:38:29 +0100, Robert Swindells wrote:
> >> I am using a Radeon HD-5450 with -current, works fine including playing
> >> videos.
> >
> > And how about viewing https://webglsamples.org/aquarium/aquarium.html
> > in Firefox (I use 142.0.1nb1 but I first saw it with one from a year
> > ago, 123 or so I think it was). In particular *switching away* from the
> > tab (or switching to a different workspace in ctwm) seems to trigger it
> > for me. It takes 20-30 seconds maybe before it happens.
> 
> Works fine for me in Firefox 142.0.3.
> 
> > I am starting to wonder about my setup with 10.1. Maybe it doesn't
> > actually use accelleration, because this page
> > https://webglreport.com/?v=2 reports
> 
> For me it reads:
> 
> Platform: 	Linux x86_64
> Browser User Agent: 	Mozilla/5.0 (X11; NetBSD x86_64; rv:143.0) Gecko/20100101 Firefox/143.0
> Context Name: 	webgl2
> GL Version: 	WebGL 2.0
> Shading Language Version: 	WebGL GLSL ES 3.00
> Vendor: 	Mozilla
> Renderer: 	Radeon HD 3200 Graphics, or similar

Interesting... then I wonder what other thing is different for me that
apparently is "required" to get the GPU lockups...

> Unmasked Vendor: 	X.Org
> Unmasked Renderer: 	Radeon HD 3200 Graphics, or similar
> Antialiasing: 	Available
> ANGLE: 	No
> Major Performance Caveat: 	No

> Do you have a render node?

I would assume that this is /dev/dri/renderD128, right?

> What is in the /dev/dri directory?
> 
> It should be:
> card0      card2      renderD128 renderD130
> card1      card3      renderD129 renderD131

On the 10.1 I have currently

$ l -R /dev/dri
total 45
drwxr-xr-x   3 root  wheel       512 May 19  2024 ./
drwxr-xr-x  10 root  wheel     44032 Sep 11 18:19 ../
crw-rw-rw-   1 root  wheel  180,   0 Dec  6  2015 card0
drwxr-xr-x   2 root  wheel       512 Apr 29  2024 not/
crw-rw-rw-   1 root  wheel  180, 128 Apr  8  2024 renderD128

/dev/dri/not:
total 2
drwxr-xr-x  2 root  wheel       512 Apr 29  2024 ./
drwxr-xr-x  3 root  wheel       512 May 19  2024 ../
crw-rw----  1 root  wheel  180,   1 Aug  3  2018 card1
crw-rw----  1 root  wheel  180,   2 Aug  3  2018 card2
crw-rw----  1 root  wheel  180,   3 Aug  3  2018 card3
crw-rw----  1 root  wheel  180, 129 Apr  8  2024 renderD129
crw-rw----  1 root  wheel  180, 130 Apr  8  2024 renderD130
crw-rw----  1 root  wheel  180, 131 Apr  8  2024 renderD131

and as mentioned with this, Firefox claims there is no "render node".

On the test machine there is (I moved stuff around today and in the end
I wanted the "render node" disabled)

$ l -R /dev/dri/
total 41
drwxr-xr-x   3 root  wheel     512 Oct 12 18:20 ./
drwxr-xr-x  10 root  wheel   39936 Oct 12 18:55 ../
crw-rw-rw-   1 root  wheel  180, 0 Dec  6  2015 card0
crw-rw-rw-   1 root  wheel  180, 1 Aug  3  2018 card1
crw-rw-rw-   1 root  wheel  180, 2 Aug  3  2018 card2
crw-rw-rw-   1 root  wheel  180, 3 Aug  3  2018 card3
drwxr-xr-x   2 root  wheel     512 Oct 12 18:20 not/

/dev/dri/not:
total 2
drwxr-xr-x  2 root  wheel       512 Oct 12 18:20 ./
drwxr-xr-x  3 root  wheel       512 Oct 12 18:20 ../
crw-rw-rw-  1 root  wheel  180, 128 May 11  2024 renderD128
crw-rw-rw-  1 root  wheel  180, 129 May 19  2024 renderD129

With the files dri/not/* moved to dri/, I get "Radeon HD 3200 Graphics,
or similar" in webglreport and unfortunately the "   605.220608]
radeon0: warn: GPU lockup (current fence id 0x0000000000009932 last
fence id 0x0000000000009940 on ring 3)".

-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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