Version: (using KDE KDE 3.5.2) Installed from: SuSE RPMs For now such collisions are not detected and can lead to confusion -- for example secret shortcut ctrl+u vs. app shorcut ctrl+u as quick search pane on/off (see http://bugs.kde.org/show_bug.cgi?id=129763). In this example the problem occurs when you are in QS edit box and try to hide the pane. While configuring the settings the user should see a warning, similar to warning about shorcuts duplicates. This was my first idea, but as Stefan Borggraefe pointed out it could be annoying (especially for experienced users). So, another approach... such warning should appear with an option "do not show it again" but also there should be a warning-text in the settings dialog status bar or an icon in the shortcuts table (I mean one icon per shortcut).
Furthermore Konqueror and maybe other apps already use Ctrl+u and similar keys as a keyboard shortcut by default, which also causes confusion: see bug 93239.
The upcoming KDE 4 HIG contains a list of such shortcuts http://websvn.kde.org/*checkout*/trunk/www/areas/guidelines/html/keyboard_shortcuts.html?rev=502285 Key Binding Comment Ctrl+A Equivalent to Home (See also Select All) Ctrl+E Equivalent to End Ctrl+H Equivalent to backspace Ctrl+K Delete till end of line Ctrl+U Delete from start of line
Closing old bugs