Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I wish to change the default scaling method for the desktop wallpaper in KDE(more specifically Kubuntu) by editing the configuration file KDE uses to fill in those defaults on a fresh install. So that, when any new account is created, or someone is installing the OS, it is set to Scaled & Cropped instead of zoomed or scaled.

I know that gnome has this default setting stored in,


or in,


I have been searching the linux filesystem for a couple days know to find the KDE equivalent of the files listed above, but with no luck.

I have thoroughly search '/usr/share/kununtu-default-settings' but there doesn't seem to be any configuration file for the wallpaper settings listed there. At this point I am assuming another program, not built into KDE, is handling the wallpaper, I don't know how to determine this though.

share|improve this question
up vote 0 down vote accepted

KDE Plasma desktop

The KDE configuration files:

The KDE is using the plasma desktop and the wallpaper is an applet/widget. The plasma desktop applet configuration file is: plasma-desktop-appletsrc.

The wallpaper setting can be set for the each activity/desktop.

The positioning information is saved to the 'wallpaperposition=X'

wallpaperposition=0 is 'Scaled'

wallpaperposition=1 is 'Centered'

wallpaperposition=2 is 'Scaled & Cropped'

wallpaperposition=3 is 'Tiled'

wallpaperposition=4 is 'Center Tiled'

wallpaperposition=5 is 'Scaled, keep proportions'


The default configuration profile path is read from the /etc/kde4rc. The information is used when the new user default configuration files are made.

The Kubuntu is using:


the user can change this - as example at here


The Kubuntu has in the /usr/share/kubuntu-default-settings/kde4-profile/default/share/config/plasma-desktop-appletsrc:


You could edit your plasma desktop and then copy your ~/.kde/share/config/plasma-desktop-appletsrc to the /usr/share/my-default-settings/kde4-profile/default/share/config/plasma-desktop-appletsrc. The new user will then has your plasma applet settings as start default.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.