Connect the monitor to the 560(and check that mobo bios is set to run it).
Download/install drivers for 560.
There is no crossfire/dual/switchable graphics with the apu.
Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..