100-140 Question 47
Single answerA user reports that their laptop screen occasionally flickers and the colors appear distorted, but the issue resolves when the laptop is connected to an external monitor. Which of the following is the MOST likely cause of the issue?
- A
A faulty graphics card in the laptop
- B
A loose or damaged display cable inside the laptop
- C
An outdated operating system that needs an update
- D
A malfunctioning external monitor
Show answer and explanation
Correct answer: B
Explanation
The symptoms described, flickering and distorted colors on the laptop screen but not on the external monitor, indicate a problem specific to the laptop's internal display. A loose or damaged display cable inside the laptop is the most likely cause, as it can lead to intermittent or partial connection issues, affecting the internal screen's functionality. This explains why the external monitor remains unaffected.
- A. Incorrect.
A faulty graphics card would typically cause display issues on both the laptop screen and the external monitor. Since the issue resolves when using an external monitor, this is less likely.
- B. Correct.
A loose or damaged display cable inside the laptop can cause flickering or distorted colors on the internal screen while the external display remains unaffected. This matches the described scenario.
- C. Incorrect.
An outdated operating system would not selectively affect the laptop screen while leaving the external monitor functioning correctly. This is not the most likely cause.
- D. Incorrect.
The external monitor is functioning correctly in this scenario, as it resolves the issue when connected. This rules out the external monitor as the source of the problem.