ONN Monitor Not Working [You Should Try This First]

I have been having trouble with my ONN monitor lately. It won’t turn on and is starting to frustrate me. 

If you are facing the same problem as mine, I am sure many others experienced it. 

So I decided to share some of the things that worked for me in case they help anyone else fix their malfunctioning ONN monitor. 

Fortunately, you can take a few simple steps to troubleshoot the issue and get your monitor back up and running in no time. 

In this article, we will explore why your ONN Monitor might not be working and present easy-to-follow instructions on diagnosing and fixing it. 

Keep reading for more information about why your ONN Monitor might malfunction -and what you can do about it.

Why is my ONN monitor not working?

The issue in your ONN monitor could be due to several reasons including if the power button is broken, there are issues with either the power cable or the HDMI cable, or you have an incorrect HDMI input connected to your computer, an outdated graphics card driver, or something wrong with the motherboard or power socket. 

Our solution for this is simply that you need to check all these components and their connections thoroughly to discover where exactly the problem lies.

How to fix the ONN monitor that is not working?

In case your ONN monitor is not working, and you wish to fix it at home, these steps will help you solve the issue. 

First, ensure that the power button is functioning correctly; firmly press it without getting stuck between positions. 

If this does not work either, check all cords connected to your screen for damage or loose connections. 

Next, try using another HDMI input port on your monitor if possible. If that still does not work, use a different HDMI cable as they may go bad over time.

If nothing has helped, there may be an issue with your power socket or an outdated graphics card driver. 

Verify whether it is properly connected and free from signs of damage or corrosion.

If this is not the issue, try updating your graphics card driver, as an outdated driver can cause compatibility issues with your ONN monitor.

Finally, if none of these steps has helped, then it may be a problem with the motherboard. 

Here is a step-by-step process to fix this issue:

  1. Issue With Power Button
  2. Faulty Power Cable
  3. Faulty HDMI Cable
  4. Incorrect HDMI Input
  5. Problem With Power Socket
  6. Outdated Graphics Card Driver
  7. Problem With Motherboard
ONN Monitor Not Working [You Should Try This First]

1- Issue With Power Button

If your ONN monitor is not working, there might be an issue with the power button. 

When you press the power button and nothing happens or the monitor does not turn on, this could indicate a problem with the actual power switch. 

Sometimes, if your power button is stuck in its “on” position and cannot be switched off, your monitor might not power on either. 

To discover whether that’s everything wrong or if there is something more serious going on, you can open up the back panel of your monitor. 

Also physically check for any obvious damage to your watt switch like a broken wire before making further moves such as changing out a new cord or trying out another source of electricity. 

If you notice anything wrong with your monitor’s power wires or cord, it will be necessary to change them. 

Test all new ones yourself before moving forward to other things like acquiring a different electric supply.

2- Faulty Power Cable

If the power cable is not properly connected or damaged, the ONN monitor will not be able to receive any power and will stop functioning. 

If you observe that the power cable appears in good condition and properly plugged into a wall outlet, you may need to simply unplug it from the socket before plugging it back in again. 

This should help reset its connection and allow your monitor to work again.

If this does not solve the problem, connect a device to the same outlet as your ONN monitor. 

If that device works, the issue is likely with the monitor itself, not the power outlet.

3- Faulty HDMI Cable

When troubleshooting if your ONN monitor is not working, one of the common causes could be a faulty HDMI cable. 

HDMI cables take signals from the computer and send them to the monitor. 

Over time, cables can become old, damaged and broken, which may result in the monitor being unable to display anything. 

If you have tried different power cables and the monitor still isn’t working, it may be worth trying a new HDMI cable. 

This can often resolve the issue if an old or broken cable is causing the problem. 

If you find that replacing the HDMI cable doesn’t work, there could be other underlying issues, such as inputting your HDMI cable incorrectly.

4- Incorrect HDMI Input

If you’re still having difficulties with your ONN monitor, it may be due to an incorrect HDMI input. 

HDMI stands for High-Definition Multimedia Interface and is the standard digital connection to transmit audio and video signals between devices. 

If you connect your ONN monitor to a device via an HDMI cable, but the monitor does not turn on or display an image, try switching the HDMI input to a different port on your device. 

If you are connecting multiple devices to the monitor and only one is not working, ensure the correct cable is plugged into the right port—some HDMI cables may look similar but have different functionality.

5- Problem With Power Socket

If your ONN monitor isn’t working after trying different power cables, HDMI cables, and HDMI inputs, the problem may lie with the power socket. 

The power socket is responsible for supplying power to the monitor, so if it’s damaged or old, you’ll need to replace it to restore your device’s functionality. 

After replacing the power socket, check to see if this has solved the issue – if not, there may be an issue with your graphics card.

It can be incredibly frustrating when all of your troubleshooting efforts fail, so it’s worth trying a different solution, such as replacing the power socket before giving up. 

Doing so could be the simple solution to get your ONN monitor up and running again.

6- Outdated Graphics Card Driver

If your monitor still isn’t working even after trying different power cables or HDMI cords and using different HDMI inputs, it’s likely a problem with the outdated graphics card driver. 

The graphics card driver is the computer software that allows your system to communicate and control the display. 

Without an updated one, your computer may not detect the monitor or be able to send data to it properly, resulting in issues with how it looks. 

To ensure you have updated graphics card drivers, check for any available updates first, then download and install them through Windows’ device manager or by downloading drivers directly from the manufacturer’s website. 

It is crucial to update your graphics card drivers if you experience persistent problems with your monitor so that optimal performance can always be maintained.

If updating the graphics card driver does not solve the issue, it may be a problem with the motherboard.

7- Problem With The Motherboard

After going through all the steps mentioned in this article if your ONN monitor is still not working, it could be a problem with your monitor’s motherboard. 

It is difficult to figure out whether the problem lies with hardware or something else is occurring. 

In order to fix the motherboard problem, you can replace or repair it and get your monitor up and running again. 

However, it can be difficult to replace or repair the monitor motherboard at home, so we recommend that you seek help from a professional assistant who can replace the motherboard for you. 

If you try fixing this issue by yourself at home, it will only increase the issue of your monitor and cause greater danger both for you and also for your monitor.


In conclusion, if your ONN monitor is not working, you can fix this problem by following these steps:

  1. Issue With Power Button
  2. Faulty Power Cable
  3. Faulty HDMI Cable
  4. Incorrect HDMI Input
  5. Problem With Power Socket
  6. Outdated Graphics Card Driver
  7. Problem With Motherboard

If you have tried all these steps and didn’t find the solution for your Acer monitor, you should contact the Acer support team.

They will solve your monitor’s problem because they have qualified and well-experienced technicians.

If you don’t know how to choose the best monitor, read the complete article on our website.

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