I am also having the same problem except I am using this monitor with my XSX console. I have tried the video port with different cables/ factory resetting & shutting everything off and reconnecting after 30sec.-1min. and still get the "No Signal" message right before the screen goes to sleep. I really want to have my laptop and console connected without having to move around 1 HDMI cord so any help getting the Display port to work would be greatly appreciated!
Never mind my previous post, the display port works perfectly fine! Turns out I was using a "passive" adapter for the XSX when I I needed an "active" adapter to connect to the display port on the monitor. Now I can make use of both ports without moving around one HDMI cable! 🙂
side note: For those wondering I am now able to get 120fps @2560x1440 using an "active" adapter on my XSX through the display port on the Omen 27i monitor.
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