What are some steps I can take to troubleshoot my issue?

1. Check to see if the monitor is plugged in properly and securely.
2. If the external monitor has an external power cord, make sure it is properly plugged in.
3. Restart the computer and re-check the connections.
4. Adjust the monitor settings in the computer’s display settings.
5. Update the display driver.
6. Try a different cable or port to connect the external monitor.
7. Check other devices that may be connected to the same port to see if there is an issue.