I edited the question and added a picture that shows the output of graphics card. Can we say that it is an Dual Link DVI-D output by looking at it?That monitor only supports 1080p 144hz using a DVI-D Dual link cable. Every GPU I am aware of uses a dual link DVI port, 144hz would not be possible with single link.
Thank you so much bro, now I'm relieved. ❤Absolutely. Like I said I have never seen a single link dvi port on a gpu. Certainly not a modern powerful card like an RX 580, it would be pointless. That is a Dual link DVI-D port 100%.