100-140 Question 277
Select 3A user contacts you because their laptop is connected to an external monitor, but the display on the monitor is not working as expected. The laptop screen works, but the external monitor remains blank. Which of the following actions should you take to resolve the issue?
- A
Check if the external monitor is turned on and properly connected to the laptop.
- B
Adjust the brightness settings on the external monitor.
- C
Verify that the display mode is set to 'Extend' or 'Duplicate' in the operating system's display settings.
- D
Restart the laptop to refresh the connection to the external monitor.
- E
Update the graphics driver on the laptop.
Show answer and explanation
Correct answers: A, C, E
Explanation
When an external monitor is blank, the issue could be due to physical connection problems, incorrect display settings, or outdated drivers. Begin by checking the monitor's power and connection status, confirm that the display mode is configured properly in the operating system, and ensure the graphics driver is up to date. These steps address the most common causes of the problem.
- A. Correct.
This is a necessary first step to rule out physical connection or power issues with the external monitor.
- B. Incorrect.
While adjusting brightness is important for visibility, it will not resolve the issue of the external monitor being blank if the connection or display settings are incorrect.
- C. Correct.
The operating system's display settings determine how the laptop interacts with external monitors. Ensuring the display mode is correctly set to 'Extend' or 'Duplicate' is crucial.
- D. Incorrect.
Restarting the laptop may be helpful in some scenarios, but it is not a primary troubleshooting step for this issue.
- E. Correct.
Updating the graphics driver could resolve compatibility or configuration issues between the laptop and the external monitor.