42PG20D: Dolby Vision on Xbox One S and LG B9

I've found some troubleshooters that may be worth a look. I'm not too big on audio-video troubleshooting but, I'd figure I'd try to provide some resources to get you on the right track at least.

https://beta.support.xbox.com/help/...-sound/troubleshooting-4k-and-hdr-on-xbox-one

https://beta.support.xbox.com/help/hardware-network/display-sound/hdr-on-xbox-one

https://www.forbes.com/sites/johnarcher/2019/03/29/xbox-one-dolby-vision-problems-lg-responds-again/

https://www.forbes.com/sites/johnarcher/2018/10/21/xbox-one-dolby-vision-problems-tcl-responds/

This is an LG issue, not a Microsoft issue. I've read multiple times LG needs to release a firmware update for this to work.

I recently started playing on a 55 "LG 4K OLED Tv (B9) and it is currently the best TV to play on. The newer LG C9 model is also highly recommended. Low latency, good and natural colors, future-proof standards such as eARC, HDMI 2.2 and Dolby Vision
are also supported!

I have a XBOX One X connected to an OLED LG C8. If I use the Netflix app on XBOX One X then the LG will display Dolby Vision. So I know that it is passing. But If I use a 4K Bluray that has Dolby Vision, the player will only output HDR。Blu-ray
playback is already up to date.

Samsung makes a great TV but no support for Dolby Vision. Made it easy to buy an LG C7 OLED Dolby Vision 55"