Can't create control on Intel integrated gpu

[Krugpelke]

GPU - Intel UHD Graphics 630 GLWpfControl - 4.0.0 - 4.3.2 Can't create GLWpfControl, DXOpenDeviceNV returns an empty GLDeviceHandle, DXInterop.GetLastError shows -1073283022 and Marshal.GetLastWin32Error shows 0, so not sure why this is happening. Previously I thought that this might be due to missing NV_DX_interop support, but Wgl.Arb.GetExtensionsString does show this string. I've tried changing multisampling samples, opengl version from 3.0 to 4.6 and context profiles, but neither seems to have any impact.

[Krugpelke]

So this is either integrated+dedicated gpu issue, or a multi-monitor issue. I've successfully created and rendered the example project (except with multisampling enabled) after specifying to only use the integrated card in bios and starting the pc with a single monitor. I'll test more when I get to pcs with only integrated gpus.

[Krugpelke]

This is what I tested with the example project:

iGPU+dGPU PC with two monitors

• Both monitor cables in dGPU slots runs fine on dGPU but results in empty GLDeviceHandle when running on iGPU.
• One monitor cable in dGPU other in iGPU slot runs fine on iGPU but throws WGL: The driver does not appear to support OpenGL trying to create NativeWindow when running on dGPU.

iGPU PC with two monitors

• Runs fine.

iGPU+dGPU laptop

• Runs fine on dGPU.
• On iGPU shows black screen with ContextProfile.Core, but runs fine with ContextProfile.Compatibility as mentioned here https://github.com/opentk/GLWpfControl/issues/73#issuecomment-2060569841

Interesting thing to note though, when rendering on iGPU, everything seems to render correctly but the debug callback is actually showing this error: [DebugSeverityHigh source=DebugSourceApi type=DebugTypeError id=1282] Error has been generated. GL error GL_INVALID_OPERATION in FramebufferRenderbuffer: (ID: 1914656587) Generic error This happens at ReallocateFramebufferIfNeeded when trying to attach depth-stencil renderbuffer to framebuffer.