What is a fast way to determine if the problem is with the LCD panel or the video controller on a notebook computer?
A) connect it to an external monitor
B) replace the video card with a known good one
C) replace the LCD panel with a known good one
D) connect the LCD panel to another working notebook

Question

Quizplus · Accepted Answer

By connecting the notebook to an external monitor, if the display on the external monitor is working properly, then the problem is with the LCD panel. If the display on the external monitor is also faulty, then the problem is with the video controller. This method can quickly and easily determine the source of the issue without needing to replace any hardware.

What Is a Fast Way to Determine If the Problem