Avalonia 12.0.x OpenGL issue?

[RobG66]

Windows 11, Nvidia 2070 Super

I cannot pinpoint the issue, but since switching to OpenGL rendering instead of ANGLE, I've been running into an issue where the O/S suddenly becomes unstable. Unstable meaning a major O/S graphics slowdown where there's about a 5 second lag between doing anything on the computer. I can't find anything in event logs or anywhere else to tell me what the issue might be. It's just suddenly BAM, instant slowdown and I have to reboot.

I have used Avalonia since January and like I said, this only started when using OpenGL. And it always happens when running/debugging something in Avalonia.

Doing a deep dive troubleshooting with sol 4.6, will see how it goes.

Rob

[CoderDeltaLAN]

Hi Rob, I may be wrong, but this looks more like a WGL/driver issue than Avalonia itself. I’d switch back to AngleEgl for now. Could you share your exact Avalonia and NVIDIA driver versions, plus the Win32PlatformOptions config? If only WGL triggers it, that would narrow things down quite a bit

[RobG66]

This key combo fixes it: Win + Ctrl + Shift + B

Which points to this probably being Nvidia driver issue. Since most people probably don't use OpenGL, they never encounter this. I certainly never did until recently.

I ran a quick diagnostic while the graphics were lagging:

RTX 2070 SUPER, driver 610.47, status OK
GPU: 5%, 33°C, 15 W
VRAM: 3.0/8 GB
DWM CPU: 0–1.6%
Total CPU: 3–6%
No recent Display, DWM, NVIDIA, or DxgKrnl errors
Desktop resolution: 3840×2160

Current Driver Version: 610.47
Downloading 610.74 right now and will upgrade

Rob