First things first: OpenSUSE 15.3, KDE/Plasma, Kensington Expert Mouse trackball.
When I use the scrolling ring around my trackball, it "scrolls" by jumping 5-6 lines at a time. I've gone into the Input Devices menu under System Settings and none of the options do anything to correct this. They do have an affect on pointer movement -- and, possibly, a little bit of an affect on scrolling when one grabs the scroll bar and drags it -- but that's not helping the wheel/ring scrolling jumpiness. Scrolling through this text window while I'm typing this
still jumps 5-6 lines at a time.
I'm sure there's got to be a setting
somewhere on the system that affects the behavior of the scroll wheel (or ring). "xev" tells me that "wheel" events are seen as either button 4 or 5 (depending on the direction of rotation) but where would I alter the amount of scrolling that's taking place?
I've looked at a config file, "71-mouse-local.hwdb", that is supposed to allow a user to redefine the "click angle" but
- redefining that setting from the default, from 15 to 3 (might as well make a big change to see if it's actually doing anything, right?),
- restarting the hwdb service (via "system-hwdb restart"),
- and issuing "udevadm trigger /dev/input/event*"
has had no effect on the amount of scrolling that's done when rotating the mouse wheel/ring.
Ideas as to where I look next to alter the amount of scrolling?
TIA...
