[solved] HDR 4K video washed out, perfect with VLC player (1 Viewer)

[KlausWirn]

Hi i would like to know how i can find out if MP 1.21 running on Windows 7 is playing back my HDR 4K files the right way?
Is there some hint on the OSD or can i see it in a Log File?

Which TV do you use?
The most TV´s shows an HDR Logo if they find an HDR Signal.
Do you use Madvr?