Question: how to connect dell laptop to vizio smart tv?
Answer: Plug one end of a VGA cable into the RGB PC input on the back of your Vizio TV. ... 
Plug the other end of the VGA cable into the VGA input on your Dell laptop. ... 
Press the "Power" button to turn on your Dell computer and then press the "Power" button to turn on your Vizio TV.
Press the "Input" button on your Vizio remote.