🔌 1. Check Power and Cables
- Are the monitors powered on? Look for a power light.
- Check the power cable is plugged into the wall securely.
- Check video cables (HDMI, DisplayPort, VGA, DVI):
- Unplug and firmly replug both ends.
- Try using a different cable or different port on the PC/monitor if available.
💻 2. Verify Input Source
- Use the monitor’s input/source button to cycle through inputs.
- Ensure it matches what your PC is using (e.g., HDMI 1, DisplayPort).
🖥️ 3. Test with One Monitor
- Disconnect all but one monitor and see if it works.
- If not, try plugging it into a different port or a different PC/laptop.
- This helps isolate whether the issue is with the monitor or the PC.
🧠 4. Check PC Boot
- Do you hear the PC turning on?
- Fans spinning, keyboard lighting up, or startup beep?
- Try restarting the PC and watch for any display flickers or logo screens.
💡 5. Try External Monitor or TV
- Connect your PC to a TV or different monitor to rule out the display itself.