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Configuration using xinput

Firstly,you must confirm you have installed "xinput".You can input below in you terminal:

apt-get install xinput

If you want to modify changes on the fly, you can do so with xinput (part of the optional xorg-x11-apps rpm on Fedora). Note that these changes are not saved when the xserver is restarted. However, you can add the lines e.g. in your .xsessionrc (depends on your distribution) so they are executed every time X starts.

To query the available options

xinput list-props "TPPS/2 IBM TrackPoint"

More information can be found in the man-pages for evdev

man evdev

To enable vertical scrolling

xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation" 1xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Button" 2xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Timeout" 200

To enable horizontal scrolling in addition to vertical scrolling

xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Axes" 6 7 4 5

To enable middle button emulation (using left- and right-click simultaneously)

xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Middle Button Emulation" 1xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Middle Button Timeout" 50