How to Fix a Blurry Computer Screen? – 4 Solutions

Last Updated on November 6, 2020

A computer screen needs to work properly to get any work done. If it has a blurry look then you will not only have a hard time working, you may hurt your eyes in the process. Here we see how to fix a blurry computer screen.

Several factors can contribute to making the screen blurry and this will determine how to fix the issue. As such, the first step to fixing the screen is to identify what is making it appear blurry.

Whether it’s the laptop’s screen or a standalone monitor, you can get the appearance of blurs if you have keyed in the wrong settings.

This is a common problem, and others include incompatible video cables, a lack of software drivers, and even the installation of incompatible third-party drivers. We’ll look at these in more detail as we go along.


How to Fix a Blurry Computer Screen

Before completely taking your laptop’s screen or your monitor apart, take a few steps back to troubleshoot and see if you can identify the cause of the problem.

You may find that fixing it requires only a few steps and that’s all.

1. Check Your Connections

How to Fix a Blurry Computer Screen
Check your cables

One of the first few things you should check, especially for a new PC build is your connections. Chances are you may have forgotten to firmly the video cable to either the monitor or the case.

If it helps, you can unplug it and then reinsert it on both ends just to make sure. The computer should be off for this just to be safe, and once you’re done, you can switch it on and confirm that it’s working. If so, great, if not, there are still other things you can do.

Make sure the cable is not damaged. The solution could be as simple as changing the cable.

If you an extra cable lying around, then give it a go. Or perhaps you can try using the cable on a different system and see if the problem persists.

2. Check Your Resolution Settings

display resolution

Check the display resolution of the screen. Having set the lower-than-recommended resolution setting can cause blurriness.

To do this, go to the settings program and look for the tab on display settings. On Windows 10, this falls under the systems menu.

Check the resolution and confirm if it’s the recommended one. If your screen is rated for a certain resolution, check to see if that’s what is displayed in the screen resolutions option.

If it’s lower, then select the option and raise the resolution to the highest supported value. The changes should pick up immediately, but if you have to, go ahead and restart the computer.

3. Install New Drivers

Whether you have incompatible drivers or the wrong ones, even if you have an older version, you may see effects show up on your screen’s quality.

Usually, most drivers get installed with a System Update. So, if you find your computer has a blurry issue, try and initialize a full system update to see if you can fix the issue.

Alternatively, you can install the drivers manually if you know the exact ones. Get the most recent ones and see if they help.

To make work even easier, you can use a driver installer utility software. This makes it easy by scanning your computer and installing all the necessary and outdated drivers. Your display driver issues can be fixed in a few minutes and you can get back to work.

4. Change the Video Port / Adapter

HDMI to VGA adapter

Many PCs and monitors both have multiple video output / input ports.

Trying changing the port on both the devices. For instance, if using an HDMI port shows blurry screen, try using a VGA port or a DVI-D port.

If you are using an adapter like HDMI-to-VGA or VGA-to-DVI-D, then the adapter could well be the culprit.

Causes of Blurry Computer Screens

Whether you wake up to a blurry computer screen or a new computer comes with a blurry screen out of the box, there’s usually a reason behind it.

Misconfigurations and physical issues are some of the main causes of these blurs. They present in different forms and as such, you get different ways to solve them.

1. Missing Drivers

Drivers are programs that control the different peripherals that are attached to the computer. In that regard, a display driver controls the screen and determines how it operates.

If you have missing drivers for your specific screen, the system may resort to a generic driver. This may not work at your screen’s native resolution, especially for very high-res screens and monitors.

The consequence of this will be the appearance of a blurry screen.

2. Incompatible Drivers

When you install third-party drivers for your screen, you may get a version that’s not fully compatible with the unit.

Since the drivers control the hardware, you may end up with a screen that underperforms because of this.

People use third-party drivers if their current ones don’t support their specific hardware as much as they’d like. Hence, to get good performance with a third-party driver, its best to find compatible ones.

3. Incorrect Resolution Settings

With modern computers, you get a wide range of screen resolutions to choose from. Then, there’s the default one that the systems auto-picks based on what your display can handle.

Going below and choosing a lower resolution can impact the look of your screen. You will get a blurry appearance across all windows.

4. Lose Video Cable Connection

When hooking up your monitor to the rest of your computer, you need to ensure that you have everything firmly fit together.

While on one hand the monitor may fail to display at all and you end up fixing the problem immediately, you can also get a blurry screen which may cause you to spend a lot of time looking for the culprit.

5. Damaged Ports or Cable

The ports on your PC or the cable connecting the display to PC could well be damaged.

This is actually quite common.

If you are using a port adapter such as VGA to HDMI or HDMI to DVI-D etc, these could well be the culprit.

6. Damage to the Screen

The screen can incur damage in a few ways and will respond differently. A blurry screen may mean one if its inner components or ICs are not working properly.

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If you want to know how to fix a blurry computer screen, the first step is to identify the cause of the blurriness.

While bad software can cause it, you can also get the same with damage, a poor video cable connection, and even the wrong settings.

Identifying the cause will save you a lot of time and spare you unnecessary work.

If you still can’t fix the blurriness, you may need to take the screen to a repair technician to get it checked and if its problem can’t be resolved then it’s time to get a new screen.


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I am an engineer with a keen interest and a passion for PC builds and hardware. is essentially the culmination of our enthusiasm towards this subject. We review PC peripherals and hardware, talk about custom builds and informative topics regarding troubleshooting issues, understanding a component better and general tips for DIY PC builders.