Question New Monitor Not Being Detected

[Carbo]

Laptop is a Dell XPS 13, model 9360. I just purchased a new Dell monitor, model U2415. It came with 2 cables. One is labeled DP V1.2; the other is a miniDP to USB. I also have a HDMI to USB-C. I plugged in the HDMI cable and turned on the monitor, thinking it would automatically be detected by the laptop, (Windows 10). But it isn't and a message on the new monitor says "No DP cable". What am I doing wrong?

 

[Muadib]

Did you change the input on the U2415 to HDMI? This monitor has 2 inputs, displayport, and HDMI.

 

[Carbo]

I didn't. I just plugged in the HDMI cable to the monitor and the USB-C to the laptop. How do I change the input to HDMI?

 

[Muadib]

The 3rd button on it takes you to the menu. Choose input source, and pick the right HDMI port (there are 2).

 

[Carbo]

Got it. Thank you.
BTW, is there a difference in performance using HDMI vs DP?

 

[Muadib]

Got it. Thank you.
BTW, is there a difference in performance using HDMI vs DP?

The U2415 resolution is 1920 x 1080 at 60Hz, so while DP 1.2 can handle more data than HDMI 1.4, both can handle 60Hz with no problems.