had to ask as I'm illiterate on the subject but, your picture shows 1 of the 4 connections is different. Is that an in or and out? and Why are they different and I get quite frustrated with 💩 I don't know or understand. And to be truthful it was one of the things I wondered about with the "problem" monitor as I was using the "different" one.
Then they had one of the others labeled "DISPLAY Input" WTFO????