I did. I wrote about it. I found that there is communication problem between my DenonAVRX7200WA and RPi5.
When I go to Denon and press "info", suddenly I have a picture from RPi5 and it stays until I turn RPi5 OFF. I can switch AVR to other inputs and after returning to RPi5, picture is still ON.
You've tried different hardware setups. Maybe your RPi's have wrong EDID data stored now.
To adjust it, type this on SSH (assuming you have a working setup, as you managed to get above)...
- getedid delete
- getedid create
- reboot