Change Lockscreen Background?

[bionic3epl]

How do you change the Lockscreen Background on 20.04?

[lng-babie]

Hi,
The easiest way I have been following is to replace the default Ubuntu background image with my preferred one. Please see if this works for Ubuntu 20.04 as well.

Replace the image /usr/share/backgrounds/warty-final-ubuntu.png (default background) with your image. I would recommend to keep backup of the original, for future use.

- Thanks

[ipv]

How do you change the Lockscreen Background on 20.04?

ideally you can not since 'buntu 20.04 comes with gnome 3.36 which uses a blurred desktop wallpaper as the background of the lock screen.