Viewport corruption with AMD Radeon on window resize

[jseward]

1. load https://github.com/microsoft/DirectX-Graphics-Samples/tree/master/Samples/Desktop/D3D12HelloWorld/src/HelloTriangle

2. modify https://github.com/microsoft/DirectX-Graphics-Samples/blob/master/Samples/Desktop/D3D12HelloWorld/src/HelloTriangle/D3D12HelloTriangle.cpp#L201 with the following code

        // Define the geometry for a triangle.
        Vertex triangleVertices[] =
        {
            { { 0.0f, 1.f * m_aspectRatio, 0.0f }, { 1.0f, 0.0f, 0.0f, 1.0f } },
            { { 1.f, -1.f * m_aspectRatio, 0.0f }, { 0.0f, 1.0f, 0.0f, 1.0f } },
            { { -1.f, -1.f * m_aspectRatio, 0.0f }, { 0.0f, 0.0f, 1.0f, 1.0f } }
        };

This will make the bug visible as the triangle will now extend to the window extents.

3. run app and resize the window a bit using the mouse (ex. bottom right corner)

4. see corruption in the viewport as it seems mismatched to the window client area
   

5. moving the window with the title bar will fix the bug

DxDiag.txt

[PixelRick]

Same with an RTX2080 for me.