Weird discoloration issues after quitting any game running with Dolby Vision (Alpha...

Another Nuance came up. Now when streaming with dolby vision Off. Wnen I stream Dolby Content with Netflix through XBOX, within the XBOX settings upon launch of Netflix Dolby vision turns off ALLM in my XBOX and plays Dolby regardless of setting in the XBOX. And launching a game there after it does not turn off dolby vision for gaming or allow dolby vision, nor does it turn back on ALLM. I wanted to try to avoid changing the 4K options everytime I want to do something else.

It's not an issue that requires resolving. It's just a simple reminder that Dolby Vision increases input lag. If it feels like the input lag is unbearable, just disable Dolby Vision for Gaming in the video modes menu.

Microsoft has released a statement saying that Dolby Vision will only be available for streaming apps and it will not be supported by games. The Xbox Insider Alpha Skip Ahead team which includes myself just started testing it this week. Keep in mind we are
testing updates scheduled for release in 2019. Nothing more definitive and testing can change release schedule to the general public dramatically. And very few TVs support it. Samsung for example will not use it on any of theirs.

https://www.forbes.com/sites/johnarcher/2018/07/14/xbox-one-x-and-s-dolby-vision-update-things-just-...

Dolby vision is not working with UHD Blue-ray either.

No, this is merely about 4K-content not playing, no matter if there's Dolby Vision or not. Any ideas?

I had the exact same problem which didn't start until today, and I use my Xbox Series X every day..

Starting today, running any game would show me a screen like the op showed.

I turned off Dolby Vision on my LG 55C2 like Jesse Mass suggested (THANK YOU!) and that completely fixed the problem.

With regards to Dolby Vision...

So it's either a TV update that went through (current software version 03.33.65) and changed something (but I didn't notice a recent update), or the Xbox changed something (though the last Xbox update was over a month ago).

So I turned off Dolby Vision in the Xbox's video settings and now everything works fine (except for no Dolby Vision).