Version: (using KDE 4.4.1) Installed from: Ubuntu Packages In multiple versions of KDE 4 that I tried, (from an early 4.3 pre development snapshot, to 4.4.1) And in Kubuntu and OpenSuse, the sounds under "KDE System Notifications" for questions and errors are not played. This is easily reproduced. Some instances I can think of: with the question sound set to play a sound in the KCM: Open Kate, type a few characters, and close out the window. The do you want to save dialog plays no sound Open systemsettings, and make a change in a KCM without hitting apply. The dialog prompting to save the settings plays no sound Open konsole, or konqueror, and open two tabs, and close the windows. Both dialogs play no sound.
*** This bug has been marked as a duplicate of bug 237670 ***