GNU/Linux Debian Buster Trackball Scroll Setup Guide

September 29, 2019 | By the+gnu+linux+evangelist.

Getting Started

  1. 3. Finding out Device Name

    So to Display Devices List
    Run:

    xinput list

    Select & Copy Device’s Name with Ctrl+x.

    Xinput Debian Tutorial - Devices List

    Or simply take note of the Device’s ID.

  2. 4. Setting up Xinput Device Emulation

    Now to Enable Xinput Device Emulation on Debian
    First, to list the available Properties run:

    xinput list-props "[DEVICENAME]"

    Or alternatively:

    xinput list-props [DEVICEID]

    So in this case for instance:

    xinput list-props "Kensington      Kensington Expert Mouse"

    Or else:

    xinput list-props 13
    Xinput Debian Tutorial - Devices List

    But if the “Wheel Emulation” Property is Not Found then you have to configure Evdev in Xorg like:

    sudo cp /usr/share/X11/xorg.conf.d/10-evdev.conf /etc/X11/xorg.conf.d/

    And then Reboot with:

    sudo reboot

    Next to set up a Trackball Wheel Scroll, first enable it:

    xinput --set-prop "Kensington      Kensington Expert Mouse" "Evdev Wheel Emulation" 1

    So alternatively easier using the ID like:

    xinput --set-prop 13 "Evdev Wheel Emulation" 1

    And then set the Target Button:

    xinput --set-prop 13 "Evdev Wheel Emulation Button" 2

    How to Find the Trackball Button ID

    Find Device Button on Debian
  3. 5. Making Permanent Config

    Last, to make a Permanent Xinput Configuration File
    For a Single User using the nano editor, put your both Commands into:

    nano ~/.xsessionrc

    Ctrl+x to Save & Exit from nano Editor.
    The setup should be consistent also after rebooting.

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