How to Get Rid of the Black Bars on the Monitor?

Have you ever experienced the frustration of seeing mysterious black bars on the sides of your computer monitor while working or gaming? 

These unsightly black bars can be a common issue faced by many computer users and can significantly affect the overall viewing experience. 

A computer monitor with black bars on either side can be easily fixed. An incorrect aspect ratio resulted in these bars. You can resolve this issue by adjusting the monitor’s settings and the PC’s settings by going to the Control Panel.

Here we will discuss the causes of black bars on the monitor, the technicalities involved, and step-by-step guides on how to fix them.

How to Get Rid of the Black Bars on the Monitor – A Comprehensive Guide!

1. Identify the Cause

Before proceeding with any troubleshooting, it is essential to identify the cause of the black bars. Typically, black bars appear on the side of the monitor when the aspect ratio setting is incorrect. 

However, it is important to rule out other potential causes, such as screen uniformity errors or faulty hardware. explain it all in easy words.

Causes of Black Bars on the Monitor

A monitor’s aspect ratio setting interacting with the computer’s aspect ratio setting is generally the main cause of black bars on the monitor. 

In some cases, there may be other causes, but that is the first factor to consider. As black bars and vertical lines are different issues, it is important to distinguish between them.

Aspect ratio refers to the ratio of screen width to screen height. You may see black bars on either side of the screen if the aspect ratio of the content differs from the aspect ratio of your monitor or computer. 

Black bars will appear on the sides of your screen if your monitor has a 16:9 aspect ratio and you are playing a video with a 4:3 aspect ratio.

2. Fixing the Black Bars on the Monitor

Troubleshooting and adjusting settings will be required to fix the black bars. You can solve the problem by following these general guidelines

Check the Aspect Ratio Settings

Your monitor displays black bars because the aspect ratio is incorrectly set. The 16:9 aspect ratio of an ultrawide monitor will produce an incorrect visual representation when receiving a 4:3 signal. 

As a result, your monitor will have black bars on either side. Black bars along the sides of a display can be instantly fixed by adjusting the aspect ratio.

Adjust the Settings

Black bars can be easily fixed by adjusting the aspect ratio settings when you realize that incorrect enmeshment is responsible. 

There may be a page on changing the size of the picture in the instruction manual of your monitor, so look through it for details. 

Click on “Appearance and Personalization,” then on “Advanced Settings,” on “Graphics Control,” then “Scaling,” then “Customize Aspect Ratio.” To change the aspect ratio on your PC, go to the control panel. 

When you have fixed and tidied up the aspect ratio settings on your flat or curved monitor, you will be able to use it to its full potential.

Test and Verify

After making any adjustments, be sure to test your monitor to verify that the black bars have been eliminated. If you still notice black bars, you may need to revisit the aspect ratio settings and adjust them further.

Various Other Technical Considerations

Apart from adjusting the aspect ratio and settings on the monitor and PC, there are a few other technical aspects that could affect the appearance of black bars on the monitor. 

Here are some additional technical information and tips to consider

1. Graphics Card Settings

Monitor black bars can also be caused by PC graphics card settings. Ensure that the graphics card driver is up to date and check the graphics card settings to ensure that it is set to the correct aspect ratio.

2. Screen Resolution

If the screen resolution is not set correctly, it could result in black bars on the monitor. Ensure that the screen resolution is set to the recommended setting for the monitor.

3. Cable Connection

The cable connection between the PC and the monitor could also affect the appearance of black bars. Ensure the cable is securely connected and compatible with the monitor and PC.

4. Monitor Firmware

Sometimes, outdated firmware on the monitor could cause issues with the display, including black bars on the sides. Check the manufacturer’s website for any available firmware updates and install them if necessary.

5. Display Mode

Black bars can be affected by different display modes on some monitors. Check the monitor’s settings for any display mode options and ensure that it is set to the correct way for your needs.


In conclusion, black bars on the sides of your monitor can be frustrating and can impact your viewing experience. 

However, with the right troubleshooting and adjustments, you can easily get rid of them. The main cause of black bars is an incorrect aspect ratio setting, which can be resolved by adjusting your monitor and PC settings. 

Make sure to check your monitor’s instruction manual and navigate to the Control Panel on your PC to make the necessary changes.

Additionally, there may be other issues that can cause black bars, so it’s important to do a thorough Google search and explore all system and display settings to fix the problem.