It is required, otherwise the trackpoint is too sensitive.
Tested with a Dell Latitude 5580.
Signed-off-by: Jacob Moroni <mail@jakemoroni.com>
MatchDMIModalias=dmi:**bvnDellInc.:*:pnLatitude5480*
AttrTrackpointMultiplier=0.5
+[Latitude 5580 Trackpoint]
+MatchName=*DualPoint Stick
+MatchUdevType=pointingstick
+MatchDMIModalias=dmi:**bvnDellInc.:*:pnLatitude5580*
+AttrTrackpointMultiplier=0.5
+
[Latitude E5570 Trackpoint]
MatchName=*DualPoint Stick
MatchDMIModalias=dmi:*svnDellInc.:pnLatitudeE5570*