[SOLVED] DisplayPort not working ?

[testomies]

Pc doesnt recognise displayport and when dp and hdmi plugged in at the same time, hdmi is a black screen. When HDMI is plugged in without DP, it works.

How to fix ?

 

[rgd1101]

system spec? and the monitors?

 

[testomies]

only 1 monitor
Benq zowie xl2411p

os: Windows 10 Pro cpu: AMD Ryzen 5 2600 gpu: Radeon RX 590 Series ssd: 465GB KINGSTON SA2000M8500G (SATA-2 (SSD)) motherboard: B450M PRO-M2 MAX ram: G.skill Ripjaws V 3200mhz 2x8gb

 

[testomies]

Turning off HDCP Support in AMD software fixed it.