I have a MacBook Pro (Retina, 13-inch, Early 2015) with Mojave 10.14.6. When I connect my Mac to my TV with a HDMI cable, I only get the sound on the TV from a YouTub video on the Mac and no corresponding video. The TV only displays my MacBook's background background image. What am I doing wrong; do I need a different HDMI cable?
Thanks, Al
Thanks, Al