Plug and Play for Additional Monitor Not Working

Question

I have an all-in-one computer with and HDMI port and I'm trying to connect an additional monitor to it and the plug and play doesn't recognize the additional monitor and when I go to detect additional display nothing is found. The 2nd monitor just says check video cable. I've tried downloading new drivers, updates, tried multiple different types of monitors, cables and nothing seems to work. The monitors and cables work with my laptop that runs Windows 10, but not with Windows 11. Any suggestions are welcome.

Answer 1

Hi @Howard, Karla ,

Here you will find some tips to try.

Answer 2

hi,

You can try these troubleshooting tips to start with before tampering with the system settings:

Check that the monitor is plugged into a power source.
Check that the display is turned on.
Power off the computer and restart to refresh the connection.
Confirm the signal cable connection between the computer and monitor.
Locate the display controls and switch to the correct input port.
Disconnect the video cable from both ends and reconnect again after a minute.
Connect a different video cable to discard a problem with the cable.
Change ports if the monitor and graphics card have different ports.
DisplayPort and HDMI cables have different variations. Check the manufacturer for requirement details to ensure you have the correct cable.
Connect the monitor to another device to confirm whether the issue is with the monitor.
Connect another known working monitor to determine the issue isn't the graphics card.
Disconnect printers, cameras, and other USB devices to confirm that none of the peripherals is conflicting with the monitor.
Update the external monitor firmware to help fix bugs and compatibility issues (uncommon).

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Answer 3

were you able to resolve this issue? I'm having the same problem, and have tried all recommended troubleshooting steps. my computer fails to recognize any second monitor, and cannot be forced to detect via settings.