- Joined
- Sep 6, 2019
- Messages
- 12
- Motherboard
- Z390 Designare
- CPU
- i9-9900K
- Graphics
- RX 580
The MG28U has three HDMI ports and one DisplayPort 1.2. Only HDMI-1 and DisplayPort are capable of 4K60.
Some suggestions:
Important:
- From the monitor's on-board menu, go to System Setup and select All Reset. This will reset all settings to default values.
- If Adaptive Sync is enabled in the monitor's on-board Image menu, disable it.
- Also disable Game Plus.
- In the System Setup menu, set DisplayPort Stream to 1.2 (not 1.1).
- If you have a DisplayPort cable, also try connecting via that cable. The RX 580 has two DisplayPort outputs and two HDMI outputs.
- Double check that you are using a certified HDMI 2.0 cable. Not all HDMI cables are certified for 2.0. HDMI 2.0 operates at higher frequencies and requires more robust cables.
I tried all the settings on the monitor and it was already on suggested settings. The cable is HDMI 2 as I used the same cable which came with Xbox one. Is there anything I can do in the macOS to force it to recognize 60 HZ?