I have an Asus N82JV with touchpad configured for single tap, double tap and two-finger vertical scroll. Even though I have the "Enable horizantal scrolling" in the mouse configurations it still doesn't work.
Any idea how to fix? Thanks.
The challenge you are facing is likely caused by the fact that while many touchpads enable horizontal scrolling, they often do not have a large enough area for the scrolling to actually be detected. There used to be a program for changing this value, but I don't think it is supported any longer.
Of course, that is only one possible explanation, and it may just be that your touchpad doesn't support it in the first place, which is more likely the problem.
EDIT: From the information you gave, it would seem that either the driver in Linux is missing support for horizontal scrolling, or it is using the wrong configuration for your hardware. In either case, you should report a bug.