How to enable HDMI 2.0 on wemax / fengmi / xiaomi 4k HDR UST projector

[@simonc8265]

Yerra gem! This was exactly what i needed!

[@apidyahex9213]

absolute genius! thanks . Now I don't need to keep swapping out hdmi cables . Thanks very much

[@jonathaningargiola9824]

Hey, I'm experiencing issues with my set up too (Fengmi 4k Laser projector + PS5 + AV Marantz SR7010). Even though the AV amp is supposed to handle 4k, it doesn't really, and when I'm lucky enough to get a picture, it's not always stable. So I tried plugging the PS5 directly to the projector (which works like a charm) and get the audio back to the AV amp through ARC HDMI, but of course nothing works, whatever I select in the menus.. (ARC, Awake, Hdmi 2.0, speakers HDMI ARC, etc) as well as the AV / PS5 menus.. So I tried to wire the projector to the AV amp the old way, through optical s/pdif and it finally works... but with like more than 1 second of delay.... I'm getting crazy.. Any advice on how to make this work?

[@Champabay]

Guess I need new cables bc I have to toggle HDMI 2.0 several times before it works