Computer Turns On, but Monitor Displays “No Signal” Message – How to Fix

Computers are great. It lets you use them for work, enjoy some entertainment, be creative, and even lets you play games. Of course, there are times when there could be something wrong or probably an error keeps showing up. Now, just because an error shows up, doesn’t mean you can’t fix it. So today, we’ll be taking a look at a very common issue that’s related to your monitor. Let’s take a look at how to fix ‘computer turns on but no signal to monitor‘.

There are many reasons why you might see this message pop up on your monitor. Is it something to worry about? Definitely not. But, depending on how grave the problem is, it can sometimes be a worry. This might include things like changing or replacing damaged hardware etc. Whatever the case may be, there is always a solution to the problem. So, if you are someone that is worried about what you should do when your computer turns on but the monitor displays the No Signal message, this guide is for you.

Fix for Computer Turns On But No Signal to Monitor

Now, as I said earlier, there could be various reasons why your monitor might be displaying such a message. Thankfully, there are a number of fixes that you can use to solve this type of issue. We have mentioned them in order of simplicity. So go ahead and read through the fixes to know which one will be applicable in your scenario.

Computer Turns on but No Signal to Monitor

Check Cable Connections

A loose cable can be a culprit which results in displaying such messages. So, the best you need to do is to power off your PC, disconnect all the cables that are connected to your monitor and reconnect them. This also includes the power cables as well. Reconnect all of them and then turn your PC on. If you still get the no signal message, follow the other methods below.

Check your Cables and Ports

Now, cables are usually strong, but, if there is some damage, there are chances of the cable simply not working. The best way to understand if there is any damage to your cables is to run your fingers along the cables. If you feel any types of bends, cuts, or even frays at the ends, the cable needs to be replaced. Also, check the ports. You know, there could be some dirt that could be lodged in there which would make the cable not sit in and connect properly to the device. You can use a tweezer and a torchlight to see and remove any type of debris.

Test The Cables

Now, it can be possible that the cables might be in mint condition, and you aren’t exactly sure whether it’s your monitor that is having the problem or if it actually is your cables that are at fault. So, the best thing you can do is to connect and use the cables to another monitor from your friend. If the monitor works perfectly and displays no messages, then there is a high chance this is because of another reason, and in that case follow the next method.

Verify Monitor Input Sources

Gone are the days when you would use a VGA port and cable to connect your monitor to the PC. HDMI has become the standard now to connect monitors and displays. Now, there could be a chance that your monitor has not been set up properly to display its content in the right input, so, in this case, it is advisable for you to consult the user manual that came with the monitor and adjust the input sources for the display. Once you have set it up correctly, you will no longer see the signal message on the screen.

Adjust Display Resolution

If your system’s resolution is set to something that is higher than how much your display can output, then you will see the no signal message on your monitor. However, you can easily fix this issue very easily. Follow these steps

  • Power up your system and boot it into the safe mode option.
  • Booting the system into safe mode will start the system to an absolute low resolution.
  • You will now be able to use your monitor. But that is not it.
  • Now, launch the Settings app and select the System option.
  • Under System, you will see Display, click on it.
  • Now, scroll down a bit till you see the display resolution settings.
  • Select the recommended resolution from the list.
  • Or else simply select the resolution that works best with your monitor.
  • Once you have changed it, the system will ask if you wish to keep these changes. Select Keep Changes.
  • Now, restart your system to boot into normal mode.
  • Your monitor will now display correctly, and you will no longer see the No Signal message on the monitor.

Update Drivers

Now, if you feel that your system is fine, it might not just be fine yet. What does it mean? Well, you need to check and see if the monitor and your GPU drivers are the latest ones and are working correctly. To do this you can make use of the device manager itself. Here is how you can do that.

  • Power up your PC and open up the Start Menu.
  • Now, in the Start Menu, type in Device Manager.
  • You will now see the list of all hardware devices that are installed on your PC.
  • Select the Display Driver menu and click on the arrow.
  • You will now see your GPU. Right-click on it and select Update Driver.
  • It will now search for updates and install them if any are available.
  • You can also check if your monitor has updates.
  • For this, select the Monitor menu and select the Monitor under it.
  • Now, right-click and select Update Driver from the Context Menu.
  • If any updates are found, they will be installed.
  • Once the updates have been installed, restart your PC to have the drivers running the latest versions.

Check Your Hardware

It is time to open up your computer, A few important parts that you need to check on are the GPU, your RAM, CPU, Motherboard, and most importantly, the Power Supply. Have a quick check of all these pieces of hardware and see if they are faulty or damaged or for that matter not connected properly. Sometimes, if the hardware is not compatible with the other devices, you might have to replace or get hardware that works perfectly.

Reset CMOS Battery

Sometimes, performing a reset of your device can work wonders. No, we aren’t talking about resetting your PC’s Operating Systems. We are talking about the little battery that is present in the motherboard of your PC. All you need to do is power down your PC, and open it up. Now, you need to remove the battery and leave it that way for a few minutes. After 3 to 5 minutes, plug it in back and power up the PC. You should now be able to use the monitor and no longer see the No Signal message on your Monitor.


And there you have it. Different troubleshooting methods that you can follow to fix the No Signal message being displayed on your monitor. We hope this guide has helped you fix and solve this issue. Do let us know of any other methods that you might have used to fix this kind of message.

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Joshua D'souza

Enjoy games, 90's hip-hop, and tech. Loves exploring the infinite world of laptops and food. Every ready to provide assistance in anything that rocks his boat. Will gladly enjoy capturing memories through various lenses. Worked previously at PiunikaWeb as an author and researcher.

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