Apple TV 4k and Dolby vision; only 8 bit coming through
Hi!
When I activate Dolby Vision on my Apple TV 4K, most images are fantastic in movies, but some parts of the movies, in very dark photos, get a strange almost burned out, veiled and dulled look. A clear image problem in small parts of the movies (movies supporting 4K Dolby vision, purchased from iTunes; example: John Wick Parabellum.
I have great HDMI cables and the correct settings in the tv as far as I can judge. The tv itself indicates that it is in Dolby vision mode through a pop up when the movie starts.
I have been trying to understand the cause to find a fix.
From a status view in the tv, I can see that the video stream is 8 bit only, not the 10 bit I expected. I have tried changing all settings in the Apple TV to almost anything but the result is always the same: veiled burned out sections in the same scenes. 100% reproducibility.
The only way I find to get it to work is to switch to HDR (disabling Dolby vision). This makes other colors look more dull but the entire movie is watchable and in 10 bit color.
Is anyone else experiencing the same thing? And is anyone else getting Dolby Vision to work properly? If so, what settings do you use?
Thanks!
jonas