you might display any image on your Ubuntu lock screen that makes you happy, curious, or excited.

Simply right-tap on your desktop and poke the “Change Background” option.

Next, head over to the “Background” section, which shows you a gallery of images.

The lock screen of a Linux PC.

Hannah Stryker / How-To Geek

Then, tap on any image you would like to apply as the lock screen background.

After that, shut the tab and lock your screen.

Your desktop and lock screen background will change to your chosen image.

A context menu displaying different settings

We’ll show you how to remove this blur later in this tutorial.

Just go beyond the available options and add your custom image.

To do that, choose the “Add Picture” option.

A Gallery of preinstalled available images on Ubuntu desktop settings

Navigate to the folder where you downloaded or saved your image.

Then, pick the image and hit the “Open” option in the top right corner.

After uploading your image, you will see it on top of the default available images.

Ubuntu Lock screen with blur effect

pick the new image to set it as the lock screen background.

Your lock screen is now updated with a custom background, albeit still behind a layer of blur.

After that, add a lock screen blur control extension to your system.

Ubuntu desktop background images gallery

Ubuntu usually adds a blur effect to the lock screen background.

This makes it look more aesthetic and hides the details of the image.

Then, tap on the “Install” button to add a lock screen blur control extension.

A window for selecting a custom image to set it as a background

Once the extension is installed, navigate to the “Installed” tab.

Find and switch on the “Control Blur Effect on Lock Screen” extension.

Then, punch the gear icon to customize this extension.

A custom image added to the desktop background gallery

Adjust them as required.

Lock your screen and see the changes that are applied to your lock screen background.

It is now clear and without any blur effect.

Ubuntu lock screen with the new custom image applied

There are many ways to personalize your Ubuntu PC.

Personalizing Ubuntu can help you work better and have more fun.

Terminal with installation command of GNOME extension manager

Searching for the Lock Screen blur effect extension on the GNOME extension manager

All installed extensions with Lock screen blur effect extension on top

Lock screen blur remove extension settings

Lock screen with blur effect removed