How to Change Lock Screen Wallpaper on Ubuntu 18.04 LTS?

Step 1: Click on Panel at the top right.

Step 2: Click on Settings, and then click on 'Background.'

Step 3: Click on 'Lack Screen.'

Step 4: A New Window will open, there are three tabs there. Wallpapers, pictures, and colors. Select from where you want to choose your Lock Screen wallpaper. After that, click on wallpaper that you want, and then click on 'select' button. Now, close the settings window. Go to your lock screen, you will see, it's changed.

It's done


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