How to Turn Off Laptop Display When Using External Monitor?

To turn off the laptop display while using an external monitor, you can follow the steps below. Please note that the instructions provided here are based on general procedures and may vary slightly depending on your specific laptop model and operating system.

Step 1: Connect the External Monitor

Start by connecting your laptop to the external monitor using the appropriate video cable. Common types of video cables include HDMI, DisplayPort, VGA, and DVI. Ensure that both ends of the cable are securely plugged into the respective ports on your laptop and the external monitor.

Step 2: Adjust Display Settings


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Right-click on an empty area of your desktop and select “Display settings” from the context menu.
In the “Display settings” window, you will see two displays labeled as “1” and “2”. Display “1” represents your laptop’s built-in display, while “2” represents the external monitor.
To turn off the laptop display, click on the drop-down menu under “Select and rearrange displays” and choose the display labeled as “1”.
Scroll down to the section titled “Multiple displays” and select the “Disconnect this display” option under “Multiple displays” for the laptop display.
Click the “Apply” button, and then click “Keep Changes” when prompted to confirm the changes. Your laptop display should now turn off, and only the external monitor will remain active.


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  • Click on the Apple menu in the top-left corner of your screen and select “System Preferences.”
  • In the System Preferences window, click on “Displays.”
  • Select the “Arrangement” tab.
  • To turn off the laptop display, uncheck the box labeled “Mirror Displays.”
  • Drag the white bar representing the laptop display and move it out of the arrangement window onto the external monitor. This action effectively turns off the laptop display.
  • Close the System Preferences window, and your laptop display should now be turned off, and only the external monitor will be active.

Step 3: Verify the Display Configuration

After making these changes, you can ensure that the laptop display is turned off and only the external monitor is functioning by checking whether the content on your laptop screen is no longer visible.

If you need to re-enable the laptop display at any time, you can follow the same steps mentioned above and select the appropriate options to reconnect the display.

It’s important to note that some laptops may have dedicated function keys or software that allows you to quickly switch between different display modes. These methods can vary depending on the laptop brand and model, so you may want to consult your laptop’s user manual or visit the manufacturer’s support website for specific instructions if you encounter any difficulties.

In conclusion,

Turning off the laptop display while using an external monitor can provide you with a more focused and efficient working experience. By following the steps provided for your specific operating system, whether it’s Windows or macOS, you can easily disable the laptop display and have the content displayed only on the external monitor.

This setup is particularly useful when you want to utilize a larger screen or take advantage of multiple displays for tasks such as presentations, gaming, video editing, or multitasking. It allows you to dedicate all your attention to the external monitor and maximize your productivity.

Remember that the exact steps may vary slightly depending on your laptop model and operating system version, but the general concept remains the same. If you encounter any difficulties or require more specific instructions, referring to your laptop’s user manual or the manufacturer’s support website can provide you with tailored guidance.

Enjoy the benefits of using an external monitor and customizing your display setup to suit your needs and preferences.


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