How To Fix No Signal On The Computer Monitor?

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If you are running into the computer monitor with no signal problem, and you have no idea why this issue is appearing, then don’t worry you have come to the right post. You are not only the person who faces this no-signal issue. This is an irritating moment when you power on your computer but has nothing to display on the screen of your monitor because of some signal issue.

Then a question arises in your mind why does your monitor say no signal? It is not necessarily that the no signal issue occurs because your monitor or hardware is faulty.  It may occur if your loose cable is not properly fixed.

In this helpful guide, we’ll talk about the troubleshooting method. So you have to find the main reason for the no signal on the computer monitor and then try to resolve this problem.

You do not need to worry about it, we are here to help, and you just need to read this post carefully, so that you can understand the basic thing. We’ll also share the most common issues and the solutions in this article, you’ll be able to fix the problem easily by reading this article.

Basic reasons behind the no signal issue

If you have an issue of no signal, then you must know how to troubleshoot some common monitor and connection issues. Here are some effective fixes for a no-signal issue on your monitor.

There are many reasons for this issue such as

  • Cable issues
  • incorrectly configured display
  • outdated drivers
  • Hardware failure
  • faulty monitor
  • incorrect input source
  • faulty graphic driver
  • infirmly inserted graphic cards

How to fix no signal issue on a computer monitor?

So we are going to tell some solutions to the basic issue, below:

1. Loose Cables

You should check out the cables of your computer properly. Check out all wired connections of your monitor entirely then make sure that the input device is powered on first. Then you should check the video monitor cable or HDMI cable if they are properly connected to the monitor or not. If you have a desktop tower PC, then the device must be powered on. However, Some PCs have cooling fans when the fan spins, they make a noise when your PC is not booted up.

 Then you have to see that the power light is on and also check that both the monitor and PC are connected to a power connection. This is a super effective way to determine that the monitor is not turning on. Next, you should check the condition of your power cord. We can say that the faulty power cable may be the reason for this display problem.

2. Monitor input source correct

Another reason can be, that your pc is avoiding the graphics output from your computer. This issue will appear when the input source on your monitor is set to another wrong device.

It is fact that different display monitors have different or multiple input sources such as VGA, HDMI, and DVI inputs.  If you have to face no signal issue then you should check if the input sources on the monitor are correctly set.

3. The setting of Monitor Resolution

 If the computer monitor display resolutions are out of sync with the input signal then it can be some external display computer monitors that will show no image and an error no signal message.

However, if the PC video card is set to a display resolution at a higher level as compared to the native display resolution of the monitor, then the computer monitor will show a “no input signal” message on the screen of your monitor.

You need to consult the monitor specs to find its native resolution. If you have Windows PC, then you have to boot up the computer monitor in safe mode which will use a lower display resolution.

4. Graphics Card Issues

This no signal issue may appear when the graphics card is not properly inserted in its slot. Then you should disconnect all the power cables and make sure that your device is shut down before removing an internal graphics card. However, a bad graphic card or incompatible video card driver may be the reason for the no signal on a computer monitor.

5. Update the Video Card Drivers

Another reason may be your monitor does not support all resolutions. Then you should update the graphics card driver. The bad or outdated graphics card driver may also be the main reason for the no-signal issue on your computer monitor that will show on a connected external monitor. If you have an NVIDIA graphics card, you must update the NVIDIA drivers with a windows upgrade.

If you have to face the no signal on your computer monitor, then you have to upgrade your monitor. However, you can check out some other quality models with more advanced features.  This way, you can easily resolve this no signal issue on a computer monitor.

6. Try with an Alternative computer Monitor

Another easy way to troubleshoot the computer monitor is that you can connect your monitor to another computer. After connecting the monitor to another device with known video output and then the same problem persists, which means the fault is with your monitor.

And if the computer monitor works properly after connecting with another device and shows too different video inputs and also receives an active video signal from the other device, then the fault may be with your PC or it may be also the fault of a software issue.

7. Check the Hardware of your computer

You should also check out the hardware of the PC. Firstly open up your PC and check the hardware. Because if there is only one loose or faulty component, then it is the reason for this no-signal issue. Make sure to power off your pc when you start troubleshooting the hardware. You also need to unplug all power cables.

 First of all, Open the PC Case and then check the hardware properly if there are any loose components or not. It’s an easy way to check the loose component, you just need to identify a busted part. If you found any faulty component then you should replace it, but must have an idea, of which component is damaged.


When no signal issue will occur on your computer monitor then its main reason must be mainly because of bad or correctly cable connections. In this article, we have told all the basic troubleshooting problems and how to fix them. Hopefully, after reading our post, on “how to fix no issue on a computer monitor”, you have fully understood all the issues and the ways to fix them. We hope so, this article will help you a lot!

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