To fix monitor input on your Windows 11/10 computer, do the following: Under the monitor name that is having the Input Not Supported error, click Display adapter properties for Display.

If you see Input Not Supported Monitor error on your Windows 11/10 PC, you can apply any of the solutions in this post to resolve the issue.

A video card that is not making a firm connection will not display images to the monitor. Close your PC case and test the monitor again. Replace your video card completely.

A dual-monitor set-up can help to increase productivity, but what if your second screen isn't being detected? Here's what to try to fix the problem.

If your device is experiencing screen flickering, this is what you need to do to fix the problem on Windows 11.