Why won’t my laptop display on the Monitor or Projector?

Owned by David Souder
Last updated: Oct 18, 2021 by Ally Hepp
2 min read

Basic Troubleshooting - 

  1. Check the HDMI cable: Is it damaged? Reseat it securely to your laptop (or adaptor) HDMI output.

  2. Verify the Projector or monitor is turned on and is the proper connection (Laptop HDMI) selected. 

  3. Switch to another source (like the Doc Cam), wait a few seconds, then switch back to Laptop HDMI.

  4. With your laptop properly connected and the correct source selected; reboot your laptop. Sometimes there is too much going on in the background, or too many applications are running.

  5. If you turned off the projector, you may need to wait a few minutes before the system will allow you to try turning it back on.

  6. If nothing is still showing you might need to check the settings on your laptop. See below.

 

Windows Laptop Settings - 

  1. Click the Start button in the lower left-hand corner, then click on the System Icon.

  2. When you see the System Page, click Advanced Display Settings in the screen bottom-right corner.

  3. In the Advanced Display Settings, you should see two monitors shown side by side. If not please repeat the basic trouble-shooting listed above.

  4. If you do see the two monitors and then select ‘Duplicate These Displays’ from the Orientation drop-down menu. You should now see the exact same image on both your laptop and the monitor or projector in your classroom.

  5. An alternative is to press the Windows key and the “P” key simultaneously. A list of four choices will appear on the right-hand side of the screen. In most cases, choose Duplicate by using the arrow keys or cursor, then press enter. 

Apple MacBook Settings - 

  1. Under the Apple menu, upper left-hand corner select System Preferences.

  2. Then select Displays then select Arrangement. If you do not see two displays then you might need to retry the TroubleShooting steps above.

  3. Select the “Mirror” check box





  4. You should now be seeing the same image on both your laptop screen and on the monitors or Projectors in your classroom. 

  5. Most Mac Laptops will require a video adapter out from your laptop to the HDMI cable input on the classroom monitors or projectors. These adapters can vary greatly by Mac Laptop model and year - If unsure what adapter to buy please call AV Services at 410-455-2461 and we will assist.

     

    

Please call AV Services from your classroom whenever possible and we will be happy to help: 410-455-2461

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