Hey @goreng,
it looks like something went wrong with the content of your post, but as I can see your headline, I assume you have problems playing your games, because your screen turns green even though you can still hear audio.
- On which device do you have this problem: On the TV, Chrome Browser or mobile phone?
- Can you try the other devices as well to isolate the issue (if it only appears on one specific device)?
- Is this happening to all games or only in specific games?
- Is this a problem since the beginning or did this appear after you've done anything, e.g. doing an update on the device or similar?