Displayport Not Working. I would do the following: Put HDMI connection on. Connected to the NUC is a monitor with built-in speakers, the cable is a DisplayPort.
I ordered a Displayport to HDMI cable from DELL. I have trouble connecting the computer Displayport out to my external monitor. The reason a HDMI to DisplayPort cable exists are for laptops, like Lenovo's, which have a DisplayPort output for you to connect into a HDMI input on a monitor, doesn't work the other way.
Solved > DisplayPort not working after Mojave Update.
HDMI works, but the DP port does not.
For DisplayPort -> DisplayPort or DisplayPort -> mini DisplayPort monitor: Please make sure that you are using a high quality cable such as Regular passive cable or adapter does not work. I have trouble connecting the computer Displayport out to my external monitor. It just goes blank irregardless how I set, whether.