XPS 13
Natural scrolling
Tried installing ubuntu tweak, then doing setting Tweaks > Miscellaneous > Natural Scrolling to "on". Apparently, this simply modifies ~/.Xmodmap
to be
pointer = 1 2 3 5 4 6 7 8 9 10 11 12
where the reversed 4 and 5 indicate that up and down scrolling is reversed. However, this doesn't reverse scrolling in nautilus or the package manager. See this bug.
Instead, trying the approach suggested in this comment. Since /etc/X11/xorg.conf.d
didn't exist yet, I made it first.
sudo mkdir /etc/X11/xorg.conf.d sudo cp /usr/share/X11/xorg.conf.d/50-synaptics.conf /etc/X11/xorg.conf.d/ sudo vi /etc/X11/xorg.conf.d/50-synaptics.conf
Then added the following line to the touchpad catchall
inputclass:
Option "VertScrollDelta" "-25"
(the number 25 was obtained using xinput
as described here)