Why my computer screen is flickering?

Undoubtedly with the progress of technology, our lives have become more convenient, but with that also comes a variety of problems. One such common problem is a flickering computer screen.

Is it distracting and frustrating to try and work when the display is constantly moving? You’re not alone! Many people experience screen flickering.

But don’t worry – it’s a very familiar issue and one that can be easily fixed. In this blog post, we will be exploring why my computer screen is flickering and how to fix it. There are several potential causes of the problem, from hardware issues to software conflicts.

So if you’re looking to find the root of the issue and get your machine back up and running optimally, read on!

What is computer flickering?

Computer flickering is a common problem in which your computer screen appears to flickering or blinking rapidly. This can be caused by hardware, software, and even environmental factors. Moreover, the frequency and intensity of the flickering can vary. 

Generally, it’s not just a single pulse that appears on your screen; it may be multiple pulses in quick succession. It is most commonly associated with laptops due to overheating issues, but desktop computers may also experience this issue as well.

Possible reasons for a flickering computer screen

While flickering can be annoying, it’s important to determine what is causing the issue so that you can find the best solution for your computer. Let’s take a look at some of the most common causes of flickering screens.

Hardware Issues:

A common cause of computer flickering is a hardware problem with the video card or display adapter. If either of these components becomes damaged or faulty due to age or wear and tear, they may not be able to send out accurate signals, which can lead to a flickering monitor.

Power Supply Issues:

A low-quality or underpowered PSU may not be able to provide enough energy to power all the components of your PC which can lead to instability in some parts of to display adapter resulting in a flicker effect on your screen. 

Software Problems/Environmental Factors:

Software issues and environmental conditions such as heat can affect how your computer operates and consequently cause your screen to flicker. Additionally, high temperatures from poor ventilation within your case can also cause CPUs to overheat, resulting in performance drops  

Display Settings  

The other main culprit for a flickering display could be incorrect settings in Windows you have installed on your device. If you have multiple monitors connected and enabled, some applications may be trying to use one monitor instead of another. Or perhaps the refresh rate is set too low for your current resolution level.

How to Fix a Flickering Computer Screen?

Now that we know the possible causes of a flickering computer screen, let’s look at some ways to fix the issue.

Check the Cables 

The initial step is to check your cables and connections. Make sure that all of the cables are firmly plugged in, especially the power cable. If any of them seem loose or damaged, replace them with new ones before you do anything else.

Update Your Drivers 

If checking your cables doesn’t help, it’s time to update your drivers. You can find these drivers on the manufacturer’s website for your device or operating system – for example, if you use Windows 10, then you should locate their website and look for the latest driver updates from there.

Update Your Graphics Card 

Another potential solution is to update your graphics card driver. This will ensure that everything is running smoothly and that all software is up-to-date – which could potentially solve the problem of a flickering screen!

Check Your Power Settings 

The next step is to check your power settings. Often, the power settings on your computer can be set too high or too low, which can cause the screen to flicker or dim in certain areas. To fix this issue, open up the “Power Options” window and ensure the settings are set correctly for your type of monitor. 


 It’s always irritating when something goes wrong with our computers and we don’t know why – especially when it comes to something like flickering screens which can affect our ability to view content properly on our devices!

Fortunately, by looking at common causes, such as hardware malfunctions or software glitches, we can easily identify what may be wrong and adjust accordingly until our screen is back up and running perfectly again!

Here at Cloud 1 IT, we understand the importance of keeping your computer running smoothly and are here to help you with any issues that may arise. If you ever have a flickering screen or any other hardware or software issue, don’t hesitate to contact us – we’re always available and happy to help!


Can a virus make a laptop flicker?

Yes, a virus can cause your laptop to flicker. It is essential to make sure you have a reliable antivirus program installed and running on your computer to protect against malicious software threats.

Can dust cause a monitor to flicker?

Yes, dust can accumulate. This can lead to poor ventilation around your computer, which in turn can cause it to overheat and cause the screen to flicker.

How much does it cost to fix a flickering laptop screen?

The cost of repairing a flickering laptop screen can vary depending on the cause of the issue. But usually, it takes $50 – $200 for the repair.

Is flickering screen harmful?

Yes, a flickering screen can cause eye strain and fatigue. It is important to address the issue as soon as possible to avoid any long-term damage to your eyesight.