An end user reports that their laptop has a blank screen. A technician observes the keyboard lights are on, and the fan is running. Which of the following should the technician do next?
When a laptop powers on but the screen is blank, the quickest way to isolate the problem is to connect to an external monitor. This helps determine if the issue is with the laptop display or with the graphics subsystem.
From CompTIA A+ 220-1101 Official Study Guide, Objective 4.1 – Troubleshoot common hardware problems:
“A blank screen on a laptop with power indicators lit should be tested with an external display first to rule out a faulty screen or ribbon cable.”
Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Laptop Display Troubleshooting
CompTIA Exam Objectives 220-1101, Domain 4.1
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