[Feature Request] Run on Orange pi PC2?

[astefanutti]

[Feature Request] Run on Orange pi PC2?

[astefanutti]

The Connection attempt to X server failed with error 5, falling back to DRM message is just a warning that the DRM lease could not be acquired, and can be ignored.

The most interesting information is:

===================================
OpenGL ES 2.x information:
  version: "OpenGL ES 2.0 Mesa 20.0.8"
  shading language version: "OpenGL ES GLSL ES 1.0.16"
  vendor: "lima"
  renderer: "Mali450"
===================================

It seems the Lima driver only supports OpenGL ES 2.0 and GLSL ES 1.0, which seems to be confirmed by https://docs.mesa3d.org/drivers/lima.html#supported-apis.

Unless a newer version of the driver with improved OpenGL ES support, that'll limit what shaders can run on the Orange PI PC2.

Could you try with different shaders from the example directory. I would suggest examples/creation_by_silexars.glsl, which is rather simple.

[cz172638]

i saw somewhere that mali4xx has not capable enough hw to have implemented gles 3.0

[astefanutti]

Right, it looks like Mali 450 can only support OpenGL ES 1.1 or 2.0: https://developer.arm.com/Processors/Mali-450, which implies OpenGL ES GLSL 1.0 https://registry.khronos.org/OpenGL/index_es.php#specs2.

[cz172638]

maybe in readme.md document all platforms (gpu + cpu combinations) it is running on ev. mention gpus excluded due insufficient hw capabilities. i can confirm intel gpu, not yet confirmed rock pi rk3399 (with panfrost).

[astefanutti]

You're right, that's a good idea, I'd like to have a section added to the README that lists at least the environments were it's been reported to run successfully, with GPU - driver / OpenGL - OS / Kernel details.

[bsvdoom]

I think it may not be about gles3, as on my raspberry pi 3b it runs perfectly.
Not all shaders run, but what does, it runs without an issue.
And the same opengl values present below, as on the Orangepipc2.

Using display 0x5574997090 with EGL version 1.4
===================================
EGL information:
  version: "1.4"
  vendor: "Mesa Project"
===================================
OpenGL ES 2.x information:
  version: "OpenGL ES 2.0 Mesa 23.2.1-1~bpo12+rpt3"
  shading language version: "OpenGL ES GLSL ES 1.0.16"
  vendor: "Broadcom"
  renderer: "VC4 V3D 2.1"
===================================asd
Using GLSL version directive: #version 100
Rendered 30 frames in 2.001619 sec (14.987869 fps)

The strange thing is, on the Orangepi, if i run creation_by_silexars, it has glitches and flashing lights.
I tried the basic shader from shadetoy (https://www.shadertoy.com/new), and it first seems okay, but over time,
in every itaration it gets more and more pixellated, and finally, only 4 big squares can be seen changing colors.

[astefanutti]

I remember I've seen that kind of behavior with some glitches / weird rendering, with early versions of the V3D Mesa driver. I don't know how mature / stable the Lima driver is, or maybe there is a newer version of it you could test?

[bsvdoom]

I think the only officially available images are outdated, they are from 2020.
I tried ubuntu only, if i have time i will try the debian, but I dont think it will be better..
Also there is a build script, but it is also 8 years old..
Hassling with building Lima drives and kernel mods is not really an option for me now.
Anyways thanks for the responses, I acknowledge the defeat for now, you can close this if you want.

[astefanutti]

Right, it doesn't feel like the support has been very active unfortunately.

Let me close this, as I don't think there is much I can do here.