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change-gdm3-background

For now this project supports Ubuntu/Pop-Os-20.04 and 20.10 version! New support for Arch linux Gnome environment. New support for Fedora 31 onwards.

Features

  • Change login wallpaper
  • Change login Background from wallpaper located in /usr/share/Wallpapers
  • Change login screen shield. (Login screen's lockscreen image)
  • Enable / disable user for login as changes takes place for only one user.
  • Proven to work gnome-shell 3.36 onwards as it has support for it. Might also work earlier versions but is not tested and in case if it is not working nothing can be done to fix.

gdm3 Lock Screen Background Changer

Gnome GDM Login Background Changer. Easy and Fast Login Wallpaper Manipulation.

Warning

This script won't work with any previous versions of Ubuntu/Pop-Os because they comes with older version of gdm rather than gdm3.36. It also won't work if your system is set to a custom gdm3 theme. You will have to reset to the default configuration of gdm3 before using the script. This script is for default Ubuntu theme (Yaru). This tool was made specifically to work with Ubuntu or Pop OS 20.04 and 20.10 as it now bundles all configuration files inside a .gresource file.

Tested On

  • Ubuntu 20.04/20.10
  • Pop Os 20.04/20.10
  • New Support for Arch Linux
  • New Support for Fedora 31 onwards.

Installation Steps (Ubuntu)

  • Step 1: Install libglib2.0-dev-bin using sudo apt-get install libglib2.0-dev-bin
  • Step 2: clone the repo using WGET or git clone: git clone https://github.com/mastersubhajit/change-gdm3-background
  • Step 3: change directory by using cd change-gdm3-background
  • Step 4: make it executable using sudo chmod +x change-gdm3-background.sh

Usage (Ubuntu)

Run the script with root privileges such as sudo ./change-gdm3-background.sh /path/to/image

  • If you see a message login image sucessfully changed, then, when you restart gdm or reboot your computer, your gdm background should be covered with the image you selected. You can always restore your original gdm theme any time with sudo ./change-gdm3-background.sh --restore

  • This also supports solid colour background set, to use it simply type sudo ./change-gdm3-background.sh \#yourhexcode in place of "#yourhexcode" insert code of six characters like "#923641" or of three characters like "#8ca" without quotes.

Installation Steps (Arch)

  • Step 1: Install glib2 for Arch using Sudo pacman -S glib2
  • Step 2: git clone https://github.com/mastersubhajit/change-gdm3-background
  • Step 3: cd changechange-gdm-background
  • Step 4: chmod +x arch-change-gdm-background

Usage (Arch)

  • Run the script with root privileges such as sudo ./arch-change-gdm-background /path/to/image.
  • If you see a message login image sucessfully changed, then, when you restart gdm or reboot your computer, your gdm background should be covered with the image you selected.
  • You can restore your original gdm theme any time with sudo ./arch-change-gdm-background --restore.
  • This also supports solid colour background set, to use it simply type sudo ./arch-change-gdm-background \#yourhexcode in place of "#yourhexcode" insert code of six characters like "#923641" or of three characters like "#8ca" without quotes.

For more information about changing GDM background or if you with to do it manually see GDM article on ArchWiki .

Installation Steps & Usage (Fedora)

  • You can easily change login screen background

Step 1: sudo dnf copr enable zirix/gdm-wallpaper

Step 2: sudo dnf install gdm-wallpaper

Step 3: sudo set-gdm-wallpaper /path/to/image.*g

Known limitations and issues

Feel free to report issues until now there is no known issues.

Donation

If you liked my project or it helped you somehow, you can appreciate by donating via https://ko-fi.com/mastersubhajit