创建文件/etc/hal/fdi/policy/mouse-wheel.fdi，内容为：
<?xml version="1.0" encoding="UTF-8"?> <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.XAxisMapping" type="string">6 7</merge> <merge key="input.x11_options.YAxisMapping" type="string">4 5</merge> <merge key="input.x11_options.ZAxsisMapping" type="string">4 5</merge> <merge key="input.x11_options.Emulate3Buttons" type="string">true</merge> </match>
完成更改后，重启hal和gdm服务：
sudo /etc/init.d/hal restart sudo /etc/init.d/gdm restart