If the TV does not support the resolution set on the computer, the screen image may be distorted or may not be displayed.Select a computer screen resolution that is supported by the TV.Try following the procedure to output the screen again. You can reinstall Mac OS without formatting the computer though it’s always a good idea to backup first.NOTE: The issue may be resolved by turning the device off and on or disconnecting and reconnecting the cable, even when you follow the procedure shown below. Toggle the switch next to ‘Automatic Graphics Switching’ to turn this option offĪre you still having trouble? If you tried all of the solutions listed above but the Mac still wakes to a black screen continuously, you may need to reinstall your Mac OS.From the Apple menu select “System Preferences” then proceed to “Energy Saver”.This can be avoided by simply disabling automatic graphics card (GPU) switching on MacBook Pro by following this steps: For some reason those models can in some situations boot directly to a black screen. Some MacBook Pro machines have dual graphics cards that switch automatically. Solution 7: Turn Off Automatic Graphics Switching if you are dual-GPU MacBook Pro user If this worked, you’ll see the regular Mac OS desktop instead of the black screen. When the Mac boots into the black screen, type your password to login to the Mac as usual.If nothing above worked for you, try this out it might work for you: Some users reported an interesting alternative way to solve this problem. Solution 6: Enter Password and Hit Return ![]() Now your Mac will boot again as usual and hopefully no longer have the black screen while loading Mac OS or Mac OS X. When you hear the boot sound one more time, the PRAM has been reset so let the Mac boot again normally.Reboot the Mac and when you hear the boot sound, hold down the Command+Option+P+R keys in the same time.This potential solution to the black screen on boot is done after restarting the Mac. If the solutions above didn’t work, a PRAM reset can sometimes solve the issue. Solution 5: Try a PRAM Reset to Resolve the Black Boot Display System Management Controller is more likely to solve this problem but many users have reported that the solution with keypress sequence fixed the Black Screen issue for them. Wait for 15 seconds, then press the Power button again.Hold down the Power button until a hard shutdown is forced.Press the “S” button (this is the shortcut to sleep the Mac).Press the Power OFF button once (this will bring up the dialog box which you can’t see).Here’s the exact sequence to do in order to fix the black screen: Solution 4: Try a Keypress Sequence to Fix the Black Screen on Mac When the Mac boots, hopefully the black screen has gone away and you’re back to normal, but if it doesn’t work, you can try with the next solution. Hold the Shift+Control+Option+Power button at the same time for a couple seconds.Shut down the Mac and connect it to your MagSafe adapter and a wall outlet.On any recent MacBook Air or MacBook Pro with a built-in battery, this is how you do it: This is known for resolving problems with things like heat, fans, sleeping issues, and most importantly, display issues. This will reset preferences for anything related to power management. The first thing you should do to fix almost every power related problem on a Mac is to reset the System Management Controller. Solution 3: Reset the System Management Controller to Fix the Black Screen Sometimes just rebooting the Mac will be enough to fix the issue completely, this is often the case if you encounter the black screen on wake after updating Mac system software. Wait a few moments and then hold down the Power button on the Mac again until it boots back up again. ![]()
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