Newbie: How to change gdm background

Okay, I’ve searched… but I’m a bit of a newb so please bear with:

How does one change the background on gdm?


In a word don’t, in more words its not even worth doing really the easy way is to use lightdm, its very customisable but i personally don’t see the point for something you just see for 5 secs

You might need to look at something like this:

that I came across here:

:warning: As always, do your own research and use it at your own risk!

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One does not simply customise GNOME.



Why is that as I do.



So at the moment I use this script to change my login screen background image:

But my desktop you can right click on the desktop and change your wallpaper: