Avalonia: [OpenGL] Unable to initialize GLX-based rendering

[matheus.tx]

@tisis2

according to 2D/3D Graphics Acceleration (GPU) | Toradex Developer Center i would have expected it to work since the template uses the weston container which is a wayland compositor. so in my understanding wayland should be used?

Hey @tisis2

unfortunately the problem is not on our Wayland side. Avalonia does not support Wayland backend for now😓: Our own backend for Wayland · Issue #1243 · AvaloniaUI/Avalonia · GitHub

So, when using Wayland the true for Avalonia is that you are using xWayland, that does not support OpengGL ES.

@tisis2

also modified my project to use linux framebuffer. it was working in general but it seemed to be even less performant than running the application on weston without a working graphics acceleration.

On the Avalonia Framebuffer template, there are two ways:

• Using /dev/fbX, actually the Linux Framebuffer, that yeah, does not support hardware acceleration: vscode-torizon-templates/dotnetAvaloniaFrameBuffer/Program.cs at 3db2727b620c2070daa42724287c397045c7af38 · torizon/vscode-torizon-templates · GitHub

• And the /dev/dri/cardX, DRM (directly rendering manager), that uses directly the GPU and supports OpenGL ES: vscode-torizon-templates/dotnetAvaloniaFrameBuffer/Program.cs at 3db2727b620c2070daa42724287c397045c7af38 · torizon/vscode-torizon-templates · GitHub

So, make sure you are using DRM mode, if you are not already. And, if you are already using it let me know, because that’s the mode we’ve tested with the best performance, and we have to look into it if you’re having issues.

Best Regards,