Version: (using KDE Devel) Installed from: Compiled sources OS: Linux Taskbar buttons are often cut even though there is plenty of space available to their right. This needlessly prevents long window titles from being displayed completely. Please see screenshot below. Thanks!
Created attachment 11960 [details] Taskbar button prematurely cut off Screenshot (taken from JLP's Blog) that shows how a taskbar button titled “K Desktop Environment – Conque” is prematurely cut off even though there is space for it to be extended to the right.
You can fix this by editing your .kde/share/config/ktaskbarrc and adding or editing the line MaximumButtonWidth=1000 Taskbar buttons will then expand to fill the whole taskbar until there are more than the first column, at which point they will be subdivided, and so on. This should be exactly the behaviour you want. Ideally, you could get behaviour where, as long as there is space available, the column of taskbar buttons is as wide as the longest title in that column(and not wider), but that would be more complex.
making the columns variable width would also be a bit ugly imo.. in any case, you are correct that this bug is closable with that configuration option.