I have a similar issue under Windows 7, normal 8 bit display, no HDR, even with small video dimensions and in windowed mode in MPC-HC: The video starts with several seconds blackness but plays fine if I return to the start. If you say it belongs to DX11 Exclusive mode, I will try turning it off (if it was at all enabled), but right now I am not at the PC with this problem...
Last edited by LigH; 11th July 2018 at 12:32.
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