macOS Siera 10.12.6 doenst recognize second HDMI Port on external Display
One display is connected via DisplayPort and the other via HDMI.
And my display have two HDMI ports,
- Port1 works but only in 30Hz
- Port2 doesnt work, the other and the internal display goes black and than it shows everything, and this repeats. (But they work on my Windows PC, PS4)
- DisplayPort works perfect in 60Hz
Should i buy maybe a AMD Card, is there a better support?
EDIT: I took an older display (FullHD) and connected it via HDMI, and it works in 60Hz and in FullHD.