http://bugs.winehq.org/show_bug.cgi?id=30057
--- Comment #32 from Loris Zinsou the-lz-himself@orange.fr 2012-03-12 12:33:16 CDT --- Here is something interesting : https://bugs.freedesktop.org/show_bug.cgi?id=45244
According to Peter Hutterer from Xorg, valuators reporting absolute values are something normal in Xinput 2.1. Apps have to use raw events, or calculate the deltas themselves from the valuators.
Is this is right for scroll valuators, this may be right too for the other mouse axis valuators ?
Since this bug has been reported, nobody did show any interest in it either in Xorg or Ubuntu (I think I made it the right way, though ?).