Well, just in case you are not aware of this but I was able to identify what is causing this (on a high level). If I use the Arctic Horizon 2 skin, my DVP5 videos play in SDR output (despite the HDR10 logo popping up in the top right of my TV) and with wrong colors. If I switch to the OSMC skin, the DVP5 → HDR10 conversion works without issues, I get the HDR10 signal and the DoVi to HDR10 conversion produces accurate colors. Switching back to the Arctic skin and the same videos don’t work again.
Here’s my debug log after a restart, I played two test files (one MP4, one MKV, both DVP5):
https://paste.osmc.tv/unosovanez.xml
And here’s the link to the skin:
https://forum.kodi.tv/showthread.php?tid=367352
Does that mean you guys were able to fix the previous saturation/brightness issue I pointed out a few days ago? That’d be awesome.