Comment 4 for bug 271706

The problem is described in detail in RedHat Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=444440

It has a solution: http://lists.freedesktop.org/archives/xorg/2008-June/036373.html which I guess was applied on Hardy, because Ubuntu Hardy was the only distribution that got my volume wheel working fine.
With upgrade to Intrepid it is broken again.