Black screen with sound for Apple TV app when I connect an external monitor to my Mac
While Apple TV app plays without a problem when I use my Mac build-in screen, I only get sound when I connect an external monitor via HDMI. While this remains connected, I get also the same result (just sound) even when I move the window to the retina screen. As soon as I disconnect the monitor, the video is back without a problem.
Thank you!
MacBook Pro 13″, 12.2