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Fedora 11默認情況下中間鼠標已經被修改為粘貼操作
所以使用Trackpoint 做滾動操作的話，需要做些調整：
創建：/etc/hal/fdi/policy/mouse-wheel.fdi
輸入以下信息:
<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>
保存後重啟X即可
