HP monitor signal not found

[Computermom68]

HP monitor signal not phone. I’m using the same HDMI cable I used before I stored my stuff in the climate controlled storage unit moved, and now the monitor doesn’t work a signal that goes to sleep. I’m unable to look anywhere to fix it along with that my keyboard and mouse aren’t working. I have a toggle in the USB try different USB put new batteries in computer works so when I turn it on, but can’t use it because I can’t see anything I did unplug everything and wait 10 minutes and plugged it all back in signal not found

[VikramTheGreat]

Hi @Computermom68<

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

Thanks for the detailed explanation—this sounds frustrating, but I can help you troubleshoot it step by step. Based on what you described, it seems like your HP monitor is not detecting a signal, and your keyboard and mouse are also unresponsive. Here's how to approach this:

1. Check Monitor Input Source

• Make sure the monitor is set to the correct input source (e.g., HDMI).
• Use the monitor’s physical buttons to open the input/source menu and manually select HDMI.

2. Test the HDMI Cable and Monitor

• Try the HDMI cable with another device (like a laptop or game console) to confirm it works.
• Try a different HDMI cable if available.
• Try connecting the monitor to a different computer to rule out monitor issues.

3. Check PC Boot Behaviour

• When you power on the PC, listen for beeps or fan noise—this confirms it's booting.
• If there are no beeps or lights, the PC might not be booting at all (possible motherboard or PSU issue).

4. Keyboard and Mouse Not Working

• Try different USB ports, especially USB 2.0 (black) vs USB 3.0 (blue).
• If they are wireless, ensure:
  • The dongle is securely connected.
  • Fresh batteries are installed.
  • Try using a wired keyboard/mouse to test.

5. Clear CMOS (Reset BIOS)

If the system is stored and now behaves oddly, the BIOS might need a reset:

• Turn off the PC and unplug it.
• Open the case (if you're comfortable).
• Remove the CMOS battery (a coin-cell battery on the motherboard) for 5–10 minutes.
• Reinsert it and try powering on again.

I hope this helps.

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, as it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

VikramTheGreat

HP Support