Version: (using KDE 4.3.1) OS: Linux Installed from: Debian testing/unstable Packages Konsole "Clear Display" (German translation: "Terminal leeren") only adds empty lines to output. If the terminal is scrolled back and one clicks "Clear Display", the only thing that changes are the scroll bars, but it does not remove any content. At least per default, the whole terminal content should be removed when clicking on "Clear Display" or another menu entry should be added. The current situation might even be a (small) security problem - think of accidently visible passwords in the terminal.
To clear everything, go to Scrollback -> Clear Scrollback and Reset or press Ctrl+Shift+X
Thanks for the hint. 2 Remarks: - From my point of view, it's not very intuitive to have these very similar commands in two different sections of the menu. - The German translation of "Scrollback" in konsole is "Verlauf". As a native German speaker, I don't think that this is a good translation, as "Verlauf" is very generic. It could also mean "command history" or some other record of actions. An alternative might be "Terminalpuffer", or to keep the English word "Scrollback" as the free dictionary that comes with debian even knows "scrollen" as German word.