Why won’t the LCD projector display your presentation?

You are trying to connect an external LCD projector to your laptop, but when you connect the video cable nothing seems to happen. Which of these would be the best next step?

A) Press the toggle key to enable the external monitor

B) Reboot your laptop, login again, and then connect the cable

C) Close the laptop display before connecting the cable

D) Turn the LCD display off, connect the cable, and turn the LCD display on again

E) Quickly change your presentation to discuss the nocturnal habits of the African bushbaby. Wikipedia is your friend.

The answer: A) Press the toggle key to enable the external monitor

Almost all laptops have a toggle key that switches between video outputs. Usually the pattern is internal LCD monitor, LCD and external video port, and finally just the external video port. The laptop will usually have a special key for this toggle that needs to be combined with a special Fn or similar key.

Want to know more? Watch “Installing and Troubleshooting Laptop Components.”

Laptops hardware components are unique to their smaller form factor and portability. In this video, you’ll learn how to troubleshoot laptop video, check for problems with the LCD hardware, and troubleshoot issues with antenna wire connections.