I'm trying to connect two screens on my RX 570 4GB.
One screen is UHD resolution connecting by HDMI 2.0 ; the other one is a 1080p connected by a displayport to hdmi.
With this set up, only the UHD screen is playing, no signal on the other one ; when i switch cable, it switch the display but i can't get both.
I'm running a macPro 2012 on Mojave.
Any ideas ?
Thank you very much.