Reverse scroll wheel only works in some applications

Question

I have successfully used this advice to reverse the mousewheel scrolling direction in select few applications (firefox, whatever pdf viewer, libreoffice) but not others (nemo, xterm, xed). I'm wondering if there's some wider-reaching setting I can edit here to fix this.

Answer 1

Depending on your X11 input driver, you might be able to reverse the scroll direction at the X layer.

I'm using libinput input driver for my input devices (package xserver-xorg-input-libinput), and I use the following configuration (in /usr/share/X11/xorg.conf.d/90-libinput-settings):

Section "InputClass"
        Identifier "libinput pointer catchall"
        MatchIsPointer "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
        Option "NaturalScrolling" "1"
EndSection

If you're using the synaptics input driver, it might be something like this (with negative values for VertScrollDelta and HorizScrollDelta -- choose a value that you like):

Section "InputClass"
        Identifier "touchpad catchall"
        MatchIsTouchpad "on"
        Driver "synaptics"
        MatchDevicePath "/dev/input/event*"
        Option "VertScrollDelta" "-100"
        Option "HorizScrollDelta" "-100"
EndSection