Ryzen 7 3700x Distorted Graphics

I have been trying for months to install any Linux distro on this desktop without success.

Specs: Cpu Ryzen 7 3700x

M/B: Rog Strix B550 -F Gaming

Ram: Corsair 16G DDR4

Graphics: Radeon RX 580

Psu: Evga 650

The machine boots from live usb ok but graphics are distorted and unreadable.

I doubt this is a hardware problem as Windows 11 runs perfectly but I want Linux on this

Desktop.

The build is just over a year old.

Grateful for any advice.

                          Dave

                           

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