I want to change the Ubuntu Budgie login screen background to the one I'm currently using on my account; Just like it was with the previous Ubuntu versions with Unity with the draw-user-backgrounds option.
I already tried searching for that option or anything with "background" on it with dconf-editor but found nothing.


Open the Login Window app in the menu under Administration.

If it is missing from the menu then install it:

sudo apt install lightdm-settings

Enter your credentials when prompted. Click on the default background image icon, then navigate to /. Click on home>username>Pictures. Select your desired pic, click Open the in upper right corner, close the app. Log off and you will see your desktop background on the Login screen.


  • 1
    Is there some dependency of lightdm-settings that isn't specified in the package? On my system, which was upgraded from 16.04, I've installed lightdm-settings, but when I launch the Login Window menu item I get prompted for my password but then no window appears. – rakslice Sep 8 '18 at 22:24
  • @rakslice I experience the exact same thing, but my system is a clean install. – beruic Sep 27 '18 at 19:36
  • 1
    lightdm-settings doesn't seem to work in 18.04, it just causes multiple crashes in python on my machine each time I try to open it. – JamesBB Oct 1 '18 at 12:07

I have simple Ubuntu 18.04.1

In my opinion the best way to do this:

step1: make backup of the file /usr/share/gnome-shell/theme/ubuntu.css - if you have another desktop for ubuntu you can find file ubuntu.css just using command locate ==> locate ubuntu.css

step2: vim /usr/share/gnome-shell/theme/ubuntu.css and find part below

   #lockDialogGroup {
   background: #2c001e url(resource:///org/gnome/shell/theme/noise-texture.png);
   background-repeat: repeat; }

step3: change it to

   #lockDialogGroup {
   background: #2c001e url(file:///usr/share/backgrounds/warty-final-ubuntu.png);
   background-repeat: no-repeat;
   background-size: cover;
   background-position: center;

calrification: as you can see, we changed
"background: #2c001e url(resource://" part to the ==> "background: #2c001e url(file://"
and then set up path for the image.
I used /usr/share/backgrounds/ for the path with image. Also I added some css properties to center the image.

This is only the css file configuration. That's it)


I tried all of those and none worked. This does, for sure:

As root user, just copy your_image.png to /usr/share/backgrounds and ....

# cd /usr/share/backgrounds
# cp warty-final-ubuntu.png warty-final-ubuntu.png.stock
# rm warty-final-ubuntu.png
# ln -s your_image.png warty-final-ubuntu.png
# reboot

...where your_image.png is the name of the actual image you want to display. The warty one is big: 4096 x 2304. I matched mine to the same size.


lightdm-settings is a good choice, as well as, you can try

sudo xhost +SI:localuser:lightdm
sudo su lightdm -s /bin/bash

In dconf-editor find x/dm/slick-greeter you can edit whatever you want


  • Run Terminal with Ctrl + Alt + T
  • Run nautilus with sudo by doing (sudo nautilus) - without the brackets
  • Copy your desired background image to /usr/share/backgrounds/
  • Go to /etc/alternatives/gdm3.css and open with Text Editor

Change This

  #lockDialogGroup {
  background: #2c001e url(resource:///org/gnome/shell/theme/noise-texture.png);
  background-repeat: repeat; }

To This

  #lockDialogGroup {
  background: #2c001e url(file:///usr/share/backgrounds/yourimage.png);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center; }

Click 'Save' when you're done.

Restart your PC

  1. Install gnome-tweak-tool: sudo apt install gnome-tweak-tool

  2. Click on the app grid icon, type in: gnome-tweak-tool

  3. Open (click on) the gnome-tweak-tool app.

  4. Click on "Appearance".

  5. On the right-hand pane, find "Background." Click on "image" below it and find the jpg file you want for your Ubuntu background.

  6. On the right-hand pane, find "Lock Screen." Click on "image" below it and find the jpg file you want for your Lock Screen page.

Lots of other tools in gnome-tweak-tool that you might like, also.

  • 3
    It doesn't help with the "login screen". – Omar Tariq Aug 14 '18 at 9:26
  • @OmarTariq Totally agree with you. In 18.04 – SaidbakR Oct 21 '18 at 20:39

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