Dual monitor problem

Trying to connect external monitor. But all that I got is a blank screen.
I’ve tryed the Display port module, the usb c module. but nothing.

When I connect usb-c my monitor show me that I have KVM device connected (KVM Switch)
but inside the screen is black.

Fedora 36.
and on Fedora it does not show me that i’ve connected something.

I’ve found the issues… it was a problem with the KVM, since disconnected it work perfectly.

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