You work for a small city IT department and you are investig

You work for a small city IT department, and you are investigating a complaint from a laptop user that the image on her LCD display renders only multicolored vertical lines, but the image is fine when the laptop is connected to an external monitor. What could be the problem?

A. The LCD display is damaged.

B. The LCD video cable is damaged.

C. The on-board video adapter is damaged.

D. The laptop is set to only use an external monitor.

Solution

If only the internal screen shows bad video but external image appears to be normal, the problem is somewhere inside the laptop display.

B. The LCD video cable is damaged.