Change scroll lines when use mouse wheels?

Question

Is there a way to control how many lines will scroll, when you use the mouse wheels? It seems to be 5 lines by default, anyway to change this value?

I didn't find it in xfce4-settings-manager

Answer 1

Every tick of the wheel actually generates a ButtonPress and ButtonRelease (of mouse button 4 (Up) and 5 (Down)). Basically, using the wheel is like clicking a virtual up or down button repeatedly. How those events are used to scroll lines or something else is down to the application.

For example, with firefox, type about:config in the location bar and change the setting for mousewheel.withnokey.numlines and disable mousewheel.withnokey.sysnumlines

What application would you like to modify?

Answer 2

You can try using imwheel, as there is no option to set this in X config currently.