I had difficulty in getting my older Mk2cr working with this monitor so I though I would buy the new Mk3 as it sounded like it would autodetect my monitor. All I can get is a black screen when on HDMI mode on the monitor. I can get the Amiga screen to show on HDMI using a OSSC that I have so I know the Amiga is working and outputting a picture. I can load the Indivision config tool but it obviously can't detect the monitor using OSSC and I can't use the config tool on the Mk3 as I have a black screen.
Amiga A1200, Blizzard IV 1230 at 50hz 128 MB, Indivision AGA Mk3, Acer Predator X27P 4k 144hz HDR