Multiple Monitor Issue

[Kit_G12]

Hi

Im having a strange problem with my build.

Ive recently upgraded my osx to Mojave, and my Nvidia card was giving my grief so I upgraded it to a Radeon RX580 Nitro+
Only problem is now only one monitor port will work. In display settings I can see the other monitors, i's displaying their model and everything but the screens are black.
It seems to only be happening with the hdmi and dvi ports

Can any body help me I've been troubleshooting for days

Mother board Asus p8p67 evo
i7 processor
Radeon RX580 Nitro+ 8gb

 

[jk2309]

i actually have the same problem. The trick I found out is, if the machine waken up from sleep, all my monitors will start to work (3 monitors).

 

[Kit_G12]

Holy **** that actually worked.

Thank you, I nearly lost it yesterday trying to figure out the problem