BUG: DisplayCoreCustomCompositor tearing

[AlexanderBabansky]

3 displays (1080p, 1080p, 2160p) connected to GPU, custom EDID flashed to ports as Special purpose display.

At the beginning it goes normal. But after GPU is highly loaded with third party software (like Furmark) for a few seconds, tearing appears on a 4K display. GPU is not loaded anymore.

Sample changed in few places:
changed final delay seconds to infinity
added check not only for HMD but for Special purpose too

OS: Windows 10 Pro
CPU: Ryzen 7 5800X
GPU: NVIDIA Quadro RTX 4000

doc_2023-09-04_17-53-03.mp4