“No Input Detected” on Projector

How to fix the “No input detected” message that appears when a laptop connected via a docking station or USB-C cable does not display on the projector.

Steps:

  1. Ensure the monitor or projector is powered on and the correct input source (HDMI, DisplayPort, etc.) is selected.
  2. On the laptop keyboard, press Windows + P at the same time. The "Windows" key is the 4 little sqaures to the left of the Space bar.
  3. A sidebar titled Project will appear on the right side of the screen.
  4. Use the arrow keys to highlight Duplicate and press Enter.
    1. Duplicate mirrors your laptop screen to the external display.
    2. If set to PC screen only, the external display will remain blank
  5. Wait a few seconds for the signal to sync. The display should now show the laptop’s screen.

Troubleshooting

  • If the screen still shows “No input detected”
    • Reseat the USB-C or HDMI cable.
    • Try a different cable or port.
    • Restart the laptop while the external display is connected.
  • If using a docking station, verify that it’s powered and white LED light is lit up on the end of the cable.