Hmmm. Depending on what you want to achieve - why not connect it with the HDMI Cable (4)   [IMAGE] If you want to use the USB C with DP and Power delivery (3), you cannot simply connect your USB C Cable to USB C - i dont think thats how it works. You would need a specific adapter, where you can use the in 3 (usb c with DP and power delivery) included display port technology to connect it to your monitors display-port. There would be a simpler solution -> Just a cable from usbc - to displayport [URL]   No matter what solution, you will not simply just get your display-signal via any of the usb connectors on your notebook in whatever kind of usb port to usb port constellation on your monitor - thats not how these things are designed. I use this adapter here -> [URL]   Hope that helps. Cheers, Steve
i cannot seem to connect my lattitude 3400 to my dell u2722d via type-c(in laptop) to usb-a(in monitor) or type-c(in monitor) to type -a(in laptop); thanks in advance. regards, neoporter21
i cant seem to connect my dell lattitude 3400 to my dell u2722d via type-c to 
usb-a