Display blackout after AMD graphics driver installation.

I have a Chuwi LarkBox X in our house.
However, when booting, I only get a black screen.
It doesn’t matter whether Windows 10 or Windows 11 - as soon as the AMD drivers are installed, the graphics drop out completely.

What kind of possibility would there be here?
I can’t release a non-supported Windows10 version in a business environment.

This PC should be delivered to the customer asap, but it can’t be delivered like this.

Under interesting circumstances, this problem could be solved.
Namely: With a new monitor.

It is a mystery to me, but it works now.