Check to make sure the Mac is plugged in to a power source (even a laptop, the battery could be drained).If the Mac is using an external display, make sure that display is powered on.Make sure the Mac is actually powered on.Turn the screen brightness all the way up.1: Check the Obvious: Screen Brightness & Powerīefore anything else, check the obvious possibilities:

We’ve broken down this troubleshooting guide into sections from the easiest and most obvious solutions to the more complicated, follow along as needed. Resolving a Black Screen on Mac When Waking from Sleep Don’t panic! If you experience an unresponsive black screen when waking your Mac from sleep, you’ll likely be able to resolve the problem with the following troubleshooting steps.