Can't get my Lenovo ThinkPad Edge to recognize my Vizio E-series TV?

I'm running Windows 10 on a Lenovo ThinkPad Edge and have a Vizio E601i-A3 smart TV. I have them linked with a HDMI cable (HDMI output on the laptop, HDMI 4 port on the TV). I've restarted both TV and PC several times, but when I go to Settings / Display on the laptop, and click "Detect," it says there's no second display. Any hints about how to make the connection work?

Ned

If your laptop functions like most laptops, there's a FN -> FXX key combination you have to hit to cycle through the (normally) 3 options. 1. Output to screen 2. Output to external device 3. Output to both screen and external device

Look at the keyboard of your laptop, on the Function keys, do you see anything that looks like a monitor, or 2 monitors? That would be it.

Dave

Thanks for the advice, but I know how to set up the 3 options for 1 or 2 monitors. In my case, the laptop doesn't RECOGNIZE the TV, so there's no way it can USE the TV. The problem is getting the laptop to recognize that the TV is connected to it.

Ned