Apple TV and display resolution issue
I changed the settings to 4k HDR and the display is not recognizing the HDMI cable
I changed the settings to 4k HDR and the display is not recognizing the HDMI cable
If your Apple TV doesn't turn on or shows a black screen - Apple Support
I am inclined to say that step 5 will probably be the solution for you.
If your Apple TV doesn't turn on or shows a black screen - Apple Support
I am inclined to say that step 5 will probably be the solution for you.
Apple TV and display resolution issue