Horizontal scroll doesn't honor Natural Scrolling preference

I just did some tests and figured that this does not affect the Wayland session.

I also tested on a Debian 9 (Stretch) installation, also with Wayland, and observed that the setting works as expected. This bug affects only the Xorg session of Ubuntu. The issue is worse with the Xorg session being the default as well as bionic being an LTS.

Status changed to 'Confirmed' because the bug affects multiple users.

This affects me too. I noticed it as soon as I upgraded from 16.04 to 18.04.1.

It took me a while to find a workaround, so I'll document it here to help others. I believe there are other possible ways around this, but this one worked for me:

First, I ran synclient, to find the current scroll values. For me they were:
    VertScrollDelta = -73
    HorizScrollDelta = 73

As a test, I ran this command:
synclient HorizScrollDelta=-73

That fixed the problem, but only until the next reboot. To run this every time I started up, I created a script named FixNaturalHorizontalScroll which contained just that line, and I saved that script in /usr/local/bin. I used this command to make it executable:

sudo chmod +x /usr/local/bin/FixNaturalHorizontalScroll

Finally, I had to manually run gnome-session-properties in order to add my new script as a startup script.

I would be happy to help debug this. It's going to be a pretty frustrating introduction for new users coming from other systems. And it took me a few hours to piece together that workaround.

This affects me too -- and the fix that I was using stopped working with a recent update. Now none of the solutions listed work. https://askubuntu.com/questions/1029128/inverted-horizontal-scrolling-ubuntu-18-04

Nevermind -- turns out the workaround utilizing xinput set-prop still works, the device ID had changed. Nevertheless, this is a frustrating issue and seemingly simple request that this should just work as it always did. Where are the unit tests to prevent these constant regressions? I understand and appreciate the nature of open source software but it does seem basic quality control has slipped. Every update it seems I have to run around and fix something new that worked fine before.

This horizontal scrolling behavior is very confusing.
It would be very nice to have this fixed.

The issue should be reported upstream on https://gitlab.gnome.org/GNOME/gnome-control-center/issues

I've reported this to the GNOME Gitlab - https://gitlab.gnome.org/GNOME/gnome-control-center/issues/340.

Thank you for the re-direct Sebastien Bacher.

Thanks for reporting the issue upstream!

Still in 19.10

Still affected in 20.04. Using Synaptics driver.

It was fixed for me. I re-installed Ubuntu afresh though. Keeping my $HOME.

On Mon, Apr 27, 2020, 8:41 PM JPM <email address hidden> wrote:

> Still affected in 20.04. Using Synaptics driver.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1767995
>
> Title:
> Horizontal scroll doesn't honor Natural Scrolling preference
>
> Status in gnome-control-center package in Ubuntu:
> Triaged
>
> Bug description:
> It appears that the horizontal scroll setting is locked to only one
> direction and does not honor the natural scrolling preference.
>
> This has been posted on askubuntu.com
> (https://askubuntu.com/questions/1029128/inverted-horizontal-
> scrolling-ubuntu-18-04), but hasn't been reported as a bug yet (as per
> my searches).
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1767995/+subscriptions
>