A quick search of “Chromecast plays weird sound with blank screen” will get a lot of results that have to do with sound issues. The issue in this guide has nothing to do with sound setup ...

Apple has released tvOS 18.5 for Apple TV devices The update fixes a synchronization bug with Dolby Atmos The issue has been affecting users for months If you’ve found that the sound from your Dolby ...

In most homes, it will just look weird. What the Symfonisk ... re not satisfied with the audio you’re getting, it may be worth playing around with the Equalizer settings in the Sonos app instead.