- Check the connection cables and connectors of your laptop.
- Make sure the connections are securely tightened.
- Verify the video card driver is updated to the latest version.
- Inspect your monitor for any signs of damage or loose connections.
- Ensure your laptop's display settings are set to the correct resolution.
- Adjust the refresh rate in the monitor settings.
- Run a virus scan for potential malware.
- Contact a technician and attempt system restore.