June 18, 2024

Having trouble with your MacBook external display turning off unexpectedly? Let’s explore some common reasons and solutions for this frustrating issue.

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Identifying the Problem

To identify why your MacBook external display keeps turning off, start by checking the connections between your MacBook and the display. Make sure the cables are securely plugged in and not damaged.

Next, check the power settings on your MacBook to ensure that the display isn’t set to turn off after a certain period of inactivity. Adjust the settings if necessary.

If the issue persists, try using a different cable or port on both your MacBook and the display to rule out any hardware problems.

You can also reset the NVRAM or PRAM on your MacBook to see if that resolves the issue.

Essential Checks

  • Check the connections:

    • Make sure the cables connecting the MacBook to the external display are securely plugged in.
    • Inspect the cables for any signs of damage or wear and tear.
    • Try using a different cable to see if the issue is with the connection.
  • Adjust display settings:

    • Go to System Preferences on your MacBook.
    • Select Displays.
    • Adjust the settings to ensure that the external display is set up correctly.
  • Update software:

    • Check for any software updates for your MacBook.
    • Install any available updates, as they may contain fixes for display issues.
    • Restart your MacBook after installing updates.
  • Reset NVRAM/PRAM:

    • Shut down your MacBook.
    • Turn it back on and immediately press and hold Option + Command + P + R.
    • Keep holding the keys until you hear the startup sound for the second time.
    • Release the keys and check if the display issue is resolved.
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Successful Solutions

Next, adjust the energy-saving settings on your MacBook to prevent the display from turning off. Go to System Preferences > Energy Saver and adjust the settings accordingly.

If the issue persists, try resetting the System Management Controller (SMC) on your MacBook. Shut down your MacBook, then press Shift + Control + Option + Power Button for 10 seconds.

Another potential solution is to reset the NVRAM on your MacBook. Restart your MacBook and press Option + Command + P + R until you hear the startup sound twice.

Additional Recommendations

If the problem persists, try using a different cable or port on your MacBook. You can also try resetting the NVRAM by restarting your MacBook and holding down Command + Option + P + R during startup. Another troubleshooting step is to reset the SMC by shutting down your MacBook, then pressing Shift + Control + Option + power button for 10 seconds.

F.A.Qs

Why does my external monitor keep turning off?

Your external monitor keeps turning off because there may be an issue with its connection. Check the power cable to ensure it is plugged in properly at both ends.

Why does my monitor keep turning off on my Mac?

Your monitor may be turning off on your Mac due to the energy-saving feature that automatically puts your computer or display to sleep when not in use. Adjusting the sleep settings for your Mac and display can help prevent this issue.

Why does my monitor keep going black on my MacBook?

Your monitor keeps going black on your MacBook due to various reasons such as battery issues, system glitches, overheating, hardware failures, or screen damage.

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Why does my external monitor keep going black?

Your external monitor may be going black due to loose connections or outdated drivers. Make sure your cables are properly connected and update your drivers to prevent intermittent blanking.

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