I'm not sure the HDMI port on your laptop is an input? Have you tried with a normal monitor or a TV first?
Recently I have purchased a raspberry pi 3 b board, I tried to get display using my HP laptop using HDMI cable but no display from board seen on my laptop. I tried by pinging using "ping raspberrypi" it also not pinging . There is no video port on the board. So how can I connect the board. Please advise.