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How to fix black screen when waking Mac from sleep

Black screen when exiting sleep mode — quite a common problem among Mac. When you try to “Wake up” the computer, the user sees a blank screen and the computer unresponsive. Keyboard backlight and audible signals indicate that the device is working.

Just say that you should not panic. There are several ways to solve the problem of black screen on the Mac.

1. Check screen brightness and power

Before taking more serious measures, eliminate the simple and obvious options:

  • Increase the screen brightness to maximum.
  • Make sure the computer is turned on and connected to a power source (even if it’s a laptop, it could drain the battery).
  • If you’re using an external display, check whether it is connected to the device.
  • 2. Turn off and turn on Mac

    The next step is to restart the computer. Usually, it allows you to regain access to the PC and to remove the problem black screen.

  • Hold down the power key until the device shuts down.
  • After some time, turn on the computer again.
  • Often this is enough, especially if the black screen occurred after updating the system.

    3. Reset the system management controller (SMC) and NVRAM

    If the Mac freezes on a black screen when waking, you may want to reset the system management controller and the NVRAM.

    On MacBook Pro it can be done in the following way:

  • Turn Off Your Mac.
  • Disconnect the power cable.
  • Hold down the Shift+Control+Option simultaneously with the power button for 12 seconds.
  • Release all keys, then plug the power cord and turn on the computer.
  • Again reboot the device but this time hold down the buttons Command+Option+P+R for 20 seconds to reset NVRAM.
  • On older models this procedure may be somewhat different.
    Reset SMC and NVRAM — the most common way to troubleshoot problems with power and display.

    4. The problem is not solved? Reinstall macOS

    If you have already tried all previous versions and the black screen remains, you can try to reinstall the operating system. You can do a reinstallation of macOS without formatting the drive, but it is recommended to create a backup.

    5. Contact support

    Nothing helps? In this case, you will need to contact Apple support or take the device to service center. Maybe the problem is in the “hardware” of the computer, although this is very rare.

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