What you can do now
Confirm power and reconnect one known-good cable while the equipment is off.
Home office
External Monitor Not Working
A second display is blank, not detected, or uses the wrong size.
What the symptom can mean
This can come from a setting, connection, software, storage, power, or another component. Recent changes and the pattern you notice can help narrow it down without risking important files.
Helpful details to notice before your appointment
- When the problem started
- The exact message or behavior
- What changed immediately beforehand
- Whether important files are backed up
Most relevant service
Computer, monitor, camera, microphone, printer, network, and backup setup for dependable work at home.
View Home Office Setup