How to make 4K MKV file trigger HDR
I have a 4K video demo I downloaded in an MKV format that does not automatically trigger HDR on my 940D. All the other HDR demos I downloaded do. If I laboriously manually select HDR it looks incredible. But I want to add it to a looping playlist of HDR video demos to show off my TV and cannot if it won't trigger HDR.
Is there anything I can do to make the file trigger HDR?
Formally username "Amused" but account was somehow lost.
Sony XBR75X940D / Denon AVR-X2200W / Samsung UBD-K8500 / Nvidia Shield Pro 2017 / Harmony Elite / Mirage FRx (Seven/Center/Rear/sub) Speakers