I have a 2014 HP Pavilion 17 laptop and a 2017 Sharp TV model 43lb481u. I connected the laptop to the TV with an HDMI cable and can watch the video portion of what's on the laptop but there is no audio coming through to the TV. I tried going to the laptop's Sound folder to activate any HDMI buttons to make that the default, but there are no such buttons. I found no such controls on the TV, either. Any suggestions?