Why Does Monitor Say No Signal? (Answered)

While the TV monitor might be one of the easiest components to install when you need one for your PC, it is worth noting that it could often be subject to a few common errors and problems. You must understand some of these problems, with the “No Signal” issue often being one of the main problems people deal with.

Using an incorrect input source is often the main cause of this problem and is easy to fix with the right source!

If you are dealing with a monitor that shows no signal, there could be a few reasons for this happening. You must look at some of the most common reasons for this thing to pop up. We have identified some of the most common reasons that your monitor might be showing you “No Signal when using it.

Why Does My Monitor Show No Signal?

To help you make sense of the non-signal issue, we have listed a couple of the most common reasons that it occurs. Keep in mind that not everyone might have the same issue and you will need to do some troubleshooting. We aim to give you some basic things to look out for and to get you started with your monitor:

  1. Selecting The Wrong Input Source

Once you have plugged in all the cables, you will need to use the control panel or remote control of the monitor to select the right input source. If you select the wrong input source, you might be hit with the no signal display. One common example is when your input is plugged into HDMI 1 and you select HDMI 2 and no signal arises.

  1. Cable Problems And Issues

Another common problem often hits gamers after a while of using the same PC and monitor. If you have set up your monitor in a way that bends the cables going into the input, you might find that they could damage the internal wires. If your cable is not working sufficiently, you could be dealing with a faulty connection leading to a lack of signal.

  1. Resolution Settings Out Of Sync

Occasionally, you might need to check back at the graphics section of your PC. One of the faults some people experience is when the resolution on the video card and graphics card is set far higher than the capabilities of the monitor. You must look at the specs of your monitor and get the resolution settings in sync for both devices.

  1. Graphics Card Or Driver Issues

The final probable cause comes from the graphics card and while we have mentioned that the monitor and graphics card should be in sync when it comes to resolution, you might have a driver issue. Having a faulty or out-of-date driver could lead to having no signal displayed across your monitor.


While there could be numerous things affecting the monitor and display of your monitor, these are some of the most common. Fortunately, most of them can easily be fixed when you are on the PC. Let us know in the comment section, which other issues you have come across that could affect your monitor.

This article was last updated on September 20, 2022 .

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Categorized as Monitors

By Adam

The Display Blog staff account. We know display.