Why does my monitor say input not supported

One of the most common problems faced by computer users is the issue of no input supported. This error message is displayed on a computer monitor when the computer can’t detect the input from a keyboard or mouse, indicating a problem with hardware or software. 

In this article, we discuss the various causes and solutions for this issue. You will also find some troubleshooting and prevention methods for this issue.

What is input not supported?

Input not supported is a message displayed on your screen when your computer or laptop cannot recognize the input device you are using. It could be a keyboard, mouse, or game controller. If you are using a keyboard, you won’t be able to type on your keyboard if you have this message. 

If you are using a mouse, you won’t be able to move the pointer on the screen. If you are using a game controller, you won’t be able to use the buttons on the controller. Input not supported is a warning from your computer or laptop that it can’t recognize the input device that you are using.

How to troubleshoot input not supported

If you are using a monitor with a VGA port and trying to connect your computer to it, you may see an input not supported message. It is because your monitor might not be compatible with the VGA port on your computer. You won’t see this message if you use a monitor with an HDMI port.

Prevention methods

If you are experiencing this problem, it is likely your computer is not compatible with your monitor. Most monitors and computers are compatible with at least one other, but not all monitors and computers work with all monitors. Most monitors are compatible with Windows 7, Windows 10, and Windows 8, but some are not. If your monitor is incompatible with your computer, you must purchase a new one.


We hope you enjoyed our blog on why your monitor may tell you it cannot detect input. We know that sometimes, your monitor may say that input is not supported, and it’s frustrating, but trust us when we say there is a solution! You need to give your monitor a chance and input the correct information.


How do I fix input not supported on my Mac?

You have to go into the System Preferences and the Language and Text. Then go to the Keyboard option. On the Keyboard tab, you must scroll down until you find the Input Method tab. Then you have to click on the Input Method tab, and you have to click on the Assign button. Then you have to select the language that you want to use.

Do monitors need updates?

Monitors need updates once every few years. If you get a new monitor, ensure it’s the same size and resolution as your current one, so the transition is smooth.

Why is my HDMI not supported?

There are a few reasons your HDMI may not be supported on your computer. You may not have the necessary drivers installed, the HDMI may not be plugged in securely, or the HDMI cord may be plugged into the wrong port on your computer.

How do I reset my HDMI port?

If your HDMI port is not working, you need to reset it by taking off the outer casing and then the bottom part of the HDMI port. You can also try to reset your HDMI port by connecting it to a different device like your computer or laptop.

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