Version: (using KDE 4.2.0) Installed from: Debian testing/unstable Packages KDE has an option to use sudo instead of su for kdesu, but the only method for changing it, so far as I'm aware, is to edit a config file for which I've not found any documentation. I managed to get what I wanted with Google's help, but I wonder if it would be worth having an option for this somewhere in the configuration GUI. Ideally the user would never need to know about this, but so far as I can tell it's not possible to determine automagically which one of su/sudo is the most appropriate for the system in use, unless you already have root privileges to read /etc/sudoers. Maybe just checking if the user is in the 'wheel' or 'admin' group would work in all usual cases? (In my /etc/passwd there is also a 'sudo' group, but I'm not sure what that's used for.)
*** This bug has been marked as a duplicate of bug 194267 ***