Hello all, I’m in the same situation using the 11.9" DSI screen with an RPi 4 and, after tried every solution I found in this thread, what I’m actually able to obtain is what you can see in those two screenshots:
Volumio is the latest version.
Touch Display is version 3.3.5 (the only one I was able to install without getting an installation error about chromium)
Screen and RPi are powered by two different power supply.
This is what I get if I run the RPi with the standard o.s.:
So RPi, screen and power supply seems to be ok.
Any idea about what’s wrong with my setup?
Thank you in advance.
Angelo