What to do if my Dell S3222HN has no video but the power LED is on?
- RRegina GambleSep 12, 2025
If your Dell Monitor isn't displaying video but the power LED is on, try increasing the brightness and contrast using the OSD. Perform a monitor self-test. Check the video cable connector for bent or broken pins. Run the built-in diagnostics. Also, make sure the correct input source is selected via the Input Source menu.













