Set Thinkpad trackpoint speed/sensitivity

trackpoint.sh

#!/bin/bash

if [ $# -ne 2 ]; then
    echo "Usage: trackpoint <sensitivity> <speed>"
    echo ""
    echo "Sensitivity is the amount of pressure needed to make the cursor reach its max speed. Speed is the max speed."
    echo "Note: Both values must be 0-250 with 250 being the most sensitive/fast."
    exit 1
fi

echo $1 > /sys/bus/serio/devices/serio2/sensitivity
echo $2 > /sys/bus/serio/devices/serio2/speed

This should work for newer Thinkpad models, eg any of the ones with chicklet keys.

Save the file as trackpoint then do this:

chmod +x trackpoint
sudo chown root:root trackpoint
mv trackpoint /usr/bin

Then you can write sudo trackpoint <sensitivity> <speed> in your terminal to set the speed. Eg sudo trackpoint 250 150 (my preference). Values must be between 0 and 250.

Changes should be reflected immediately. Add this command to a startup script to make changes persist on reboot.