playing 4K @60fps HDR h.265 on 850M and 4712HQ? I dunno... ensure you have 850M selected as a card used for HW decoder in LAV properties. Try "NVIDIA CUVID" decoder option.
> MPV's HDR>SDR tonemapping filter is not applied in mpv to the 60fps transcoded stream. Can this be fixed in updates to come?
yeah, we definitely need too look into it, but I can't guarantee it's possible w/o some changes in mpv itself