新建文件/etc/hal/fdi/policy/mouse-wheel.fdi
写入如下内容：
<match key="info.product" string="TPPS/2 IBM TrackPoint">
<merge key="input.x11_options.EmulateWheel" type="string">true</merge>
<merge key="input.x11_options.EmulateWheelButton" type="string">2</merge>
<merge key="input.x11_options.YAxisMapping" type="string">4 5</merge>
<merge key="input.x11_options.XAxisMapping" type="string">6 7</merge>
<merge key="input.x11_options.Emulate3Buttons" type="string">true</merge>
<merge key="input.x11_options.EmulateWheelTimeout" type="string">200</merge>
</match>
2。重启后，在命令行输入
xinput set-int-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation" 8 1
xinput set-int-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation
Button" 8 2
xinput set-int-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Y
Axis" 8 4 5
xinput set-int-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation X
Axis" 8 6 7
重启
参考：
http://tpctl.sourceforge.net/configure-trackpoint.html
http://www.thinkwiki.org/wiki/How_to_configure_the_TrackPoint