switch off the computer and monitor, disconnect the cable for about 30 seconds, and then plug it back in again. If available, you should also test the connection on another DisplayPort input.

DisplayPort and HDMI offer similar benefits depending on the version, but DisplayPort is typically preferable for PC monitors ...

A computer needs the proper hardware and software ... This option is supported by DisplayPort 1.2 and Thunderbolt 3 (or newer ...