100-140 Question 247
Select 2You are assisting a user who has connected a second monitor to their laptop for dual display functionality. The user reports that the second monitor is not displaying anything, and they also want to adjust the brightness of the second monitor. Which two actions should you take to troubleshoot and resolve the issue?
- A
Check the display settings in the operating system to ensure the second monitor is enabled and set to 'Extend' or 'Duplicate' mode.
- B
Verify that the cable connecting the second monitor to the laptop is securely connected and functional.
- C
Adjust the brightness settings directly on the second monitor using its physical controls.
- D
Restart the laptop to automatically detect and configure the second monitor.
- E
Update the graphics driver to ensure compatibility with multiple displays.
Show answer and explanation
Correct answers: A, B
Explanation
To troubleshoot a second monitor that is not displaying, you should first ensure the operating system recognizes the monitor and that it is enabled in the display settings. Additionally, checking the physical connection is crucial as a loose or faulty cable could prevent the monitor from functioning. These steps address the most common causes of the issue and should be prioritized over other actions like restarting or updating drivers, which are less likely to resolve the problem immediately.
- A. Correct.
Ensuring the second monitor is enabled in the display settings and configured properly is critical for dual displays to work. The 'Extend' or 'Duplicate' mode must be selected depending on the user's preference.
- B. Correct.
A loose or faulty cable connection would prevent the second monitor from displaying anything. Checking the cable is a necessary troubleshooting step.
- C. Incorrect.
While adjusting the brightness using physical controls is possible, this action does not address the issue of the monitor not displaying anything. Brightness adjustments should only be done after the display problem is resolved.
- D. Incorrect.
Restarting the laptop might help detect the monitor in some cases, but it is not a primary troubleshooting step and does not directly address the issue of configuration or connection.
- E. Incorrect.
Updating the graphics driver could help in rare cases of compatibility issues, but it is not the first step in troubleshooting a monitor that is not displaying anything.