[HerbertWest]

You're right about "best match", it usually just makes performance worse. Above, I just posted a random config that worked with a certain movie without dropouts at a certain time. So you all can forget about that post.

But actually, I found out quite a lot in the meantime about my problem.

I noticed the dropouts never happened on PAL DVDs. With PAL movies, Kodi usually sets 50hz for them. Other movies are set to 24hz or 60hz. Especially the 60hz ones produced the dropouts.

Right now, I just set fixed 50hz in the systems menu and so far they seem to be gone with all movies. Even with the worst culprits from before, no drop.

Fun fact: A PAL DTS movie worked like charm right from the beginning on my receiver. And my LG shouldn't be able to passthrough DTS via optical, it never did with my BluRay and my Playstation.

But with Kodi/Firestick it worked. The "raw" method, perhaps? I'll just test some more movies if this stays clear all the time, maybe we won't need the debug log.