A research-based diagnostic method involves connecting your MacBook to an external monitor. If the external display works while your built-in screen remains black, the issue is likely related to the internal display panel or backlight system.. This article tells you why your MacBook Air, MacBook Pro, or iMac screen goes black, but is still running and offers 9 solutions to get your Mac back to normal.
Try connecting your MacBook to an external monitor to see if the image is displayed there. If successful, use this external display setup to back up your essential files as a precautionary measure.. Step 3: If the Mac seems on but the screen is black This is very common: the Mac boots, but you cannot see it. What to try Turn it off and on again Hold power for up to 10 seconds to force it off.