I have two HDMI ports on my vizio TV - HDMI and HDMI 2. I use the HDMI 2 port to hook up my laptop which has an HDMI port on the side of it. It works pretty well that way.
If you use a VGA cable, you'll have to also use a an audio in/out jack that you plug into the headphone socket/port of your laptop to the audio-in port of your TV.
I found instructions with other ways to hook up your laptop to your TV at a website called Tech Advisor that might help.
How to connect a laptop to TV with or without wires
Hope this helps.
Thank you so much!!