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

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

Rhialto <rhialto%falu.nl@localhost> wrote:
>On Sat 11 Oct 2025 at 16:25:11 +0200, Rhialto wrote:
>> If I disable acceleration in Firefox, it works. Kind of expected, but at
>> least this particular scenario has a workaround. It's still a regression
>> somewhere, though.
>
> That also affects playing of videos from youtube for example so it's not
> great.
>
> I will try to bisect the issue. By first build was of trunk dated
> 01-01-2025, src-public commit 517355, xsrc-public commit 7873. I was
> hoping that that far back the issue would not exist yet, but it was
> broken already. I will have to go back further.

I am using a Radeon HD-5450 with -current, works fine including playing
videos.

% glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: X.Org (0x1002)
    Device: AMD CEDAR (DRM 2.50.0 / 11.99.2, LLVM 13.0.0) (0x68f9)
    Version: 21.3.7
    Accelerated: yes
    Video memory: 1024MB
    Unified memory: no
    Preferred profile: core (0x1)
    Max core profile version: 3.3
    Max compat profile version: 3.1
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.1
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 1023 MB, largest block: 1023 MB
    VBO free aux. memory - total: 1021 MB, largest block: 1021 MB
    Texture free memory - total: 1023 MB, largest block: 1023 MB
    Texture free aux. memory - total: 1021 MB, largest block: 1021 MB
    Renderbuffer free memory - total: 1023 MB, largest block: 1023 MB
    Renderbuffer free aux. memory - total: 1021 MB, largest block: 1021 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 1024 MB
    Total available memory: 2045 MB
    Currently available dedicated video memory: 1023 MB
OpenGL vendor string: X.Org
OpenGL renderer string: AMD CEDAR (DRM 2.50.0 / 11.99.2, LLVM 13.0.0)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 21.3.7
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.1 Mesa 21.3.7
OpenGL shading language version string: 1.40
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.1 Mesa 21.3.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10