Section: Core

24) You believe your laptop display panel has failed. What is the FIRST step to isolate the probem on a running laptop?

1. Hook up an external monitor.
   
2. Restart the machine and watch for the display panel.
   
3. Toggle the Display Fn key several times to see if the screen comes on.
   
4. All of these.
   

The laptop's display output can be toggled between using the built in display only, an external monitor only, or to use both. If the output is set to external only the built in screen will appear to be dead. Toggling the switch a few times will cycle through all output modes and isolate the problem.

Exam Objective: 3.3 Compare and contrast laptop features.