A sales representative returns to the office and connects the laptop to an external display device. The display device is powered on, but the laptop image is not showing on the display device. What are two things that should be checked? (Choose two.)
- The laptop is not in sleep mode.
- The video cable is firmly connected.
- The screen refresh rate is set correctly.
- The LCD backlight is properly adjusted.
- The laptop is sending the video signal to the external device.
| Answers Explanation & Hints:
For an external display device to display a laptop screen, the video cable should be connected firmly on both ends. In addition, the laptop needs to send the video signal to the display device. |