In the advanced mouse settings, setting the drag&drop delay to 0 makes impossible to maximize windows with a double click. Reproducible: Always Steps to Reproduce: 1. Go to settings > window management > title bar actions > set "maximize" for double click 2. Check if it works. It should (hey) 2. Go to settings > input > mouse > advanced and change the drag and drop delay to 0 3. Maximizing by double clicking doesn't work anymore Actual Results: No window maximization when double click Expected Results: Window maximization when double click Feel free to ask if needed
It says "Drag start time" not drag and drop delay. (maybe a translation issue?) Kwin uses this setting to know if you're trying to drag the window. If you set it so that it should drag the window immediately, it will.
Notice that no, we cannot rely on the drag distance setting (caused bugreports and looks "slow", changed in some KDE 2 release to move instantly) nor involve the doubleclick interval (since that can be rather long and the two dead times have no actual relation as the doubleclick is defined by the second click) Why do you try to set the drag start time to 0 itfp, looking for the opposite ("never", not "instant")?