Comment 35 for bug 489830

Dell E6400 Users: tried to implement the workaround stated by Tommi, but with no effect.

However, creating a fdi file in /etc/hal/fdi/policy/mouse-wheel.fdi that looks like this has proven consistent over several suspend/resume/restart cycles:

<match key="info.product" string="DualPoint Stick">
 <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.ZAxsisMapping" type="string">4 5</merge>
 <merge key="input.x11_options.Emulate3Buttons" type="string">true</merge>
</match>

You may have to alter the “info.product” key for your system to make it work. After restarting hal and the xserver, that gave me my middle button scroll back and I’m a happy (and productive) man again. Thanks to Michael Volgt for the workaround