I haven't seen a solution to this yet and it looks like the thread is old. I have an LG C9 and Sony STR-DH790. When I'm watching something on AppleTV the screen will black out for a few seconds; then the Dolby Vision logo appears in the upper right hand corner. Sometimes everything is fine from then on, but it inevitably happens again. I'll also get static lines that become annoying. I've got the latest firmware on all.
Ideas?
OLED65C9PUA,
Hi chrisste,
Welcome to Apple Support Communities. We understand that you're having an issue with your Apple TV. We'd like to help.
Just to confirm, is this issue happening only when watching something in Dolby or does that message appear regardless on your device? Does it happen on one streaming service or all of them? If you find that it happens on one, have you removed the app and redownloaded it? This resource can help you get that done: Customize the Apple TV Home Screen - Apple Support
Let us know those additional details and we'll continue to create a plan to help.
Take care!
AppleTV and Dolby Vision black out
