GTK3 apps don't understand natural scrolling in Xubuntu

If I choose in options natural scrolling - all gtk3 apps (evince, nautilus, ubuntu-software-center etc.) won't understand natural scrolling. There is the bad workaround - to setup gnome-settings-daemon and run it. After it natural scrolling works in gkt3 apps, but stops working in all other apps!

ProblemType: Bug
DistroRelease: Xubuntu 14.04
Package: ibus (not installed)
ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
Uname: Linux 3.13.0-36-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Sep 12 00:15:27 2014
InstallationDate: Installed on 2014-08-14 (27 days ago)
InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
SourcePackage: ibus
UpgradeStatus: No upgrade log present (probably fresh install)

link to LP: https://bugs.launchpad.net/ubuntu/+source/xfce4-settings/+bug/1368402

*** Bug 11702 has been marked as a duplicate of this bug. ***

Thanks Thaddaeus for pointing me to this bug, i should have put more energy in searching for bugs in here - sorry.

By studying the provided information in this bug report and the referenced links and sublinks, i found a "simple" workaround that works for me (for now):

1. Get sure natural scrolling is setup in Gnome (was already the case here).
2. Setup normal (non-natural) scrolling in XFCE
3. Run '/usr/lib/gnome-settings-daemon/gnome-settings-daemon' after each XFCE session start. It just needs to start up and can be killed right afterwards, either way it complains about another settings daemon running!

Another way could be fiddling around with xinput (i assume gnome-settings-daemon is doing exactly that in the background), but i was too lazy to adapt that to my case...

(In reply to boennhoff from comment #2)
> Another way could be fiddling around with xinput (i assume
> gnome-settings-daemon is doing exactly that in the background), but i was
> too lazy to adapt that to my case...

I would not assume that, reverse scrolling is done at the device level, it makes no sense to me that gtk3 apps behave any differently than the others (and actually, xfce4-settings does the same as xinput).

So it needs a bit more investigation.

It works fine with libinput/xf86-input-libinput

My bet is that since GTK3 applications use smooth scrolling (http://who-t.blogspot.de/2011/09/whats-new-in-xi-21-smooth-scrolling.html), they listen to different scroll events than the (correctly-inverted) GTK2-based ones.

Like Olivier Fourdan said, libinput/xf86-input-libinput corrects the scrolling BUT left and right clicks are now and then reversed.

*** Bug 11941 has been marked as a duplicate of this bug. ***

I came across this in a Debian bug (https://bugs.debian.org/823195) and I found a workaround similar to comment #2. This works on Debian Sid, but not on Jessie, so this might not work on a system more than a year or two old.

Use normal (non-natural) scrolling in Xfce settings and run a command like:

  xinput --set-int-prop 12 "libinput Natural Scrolling Enabled" 8 1

You might have to replace the "12" with the ID of your mouse, which you can find with "xinput list". I think this is what GNOME's mouse settings does to enable natural scrolling.

I installed fedora 24 XFCE spin recently and I can confirm this behavior...

After installing xorg-x11-drv-libinput and removing xorg-x11-drv-synaptics, scrolling is consistent between GTK3 and Xfce apps, minimal testing.

I don't know what to make of the statement "left and right clicks are now and then reversed," however. Is there a separate bug for that?

Left and right being reversed sounds like left handed enabled.

What gives "xinput list-props <device>" on the mouse where the buttons are reversed?

Switching to libinput does not work for me. My workaround is to launch gnome-settings-daemon when xfce starts in "Application Autostart" settings.

Is it possible to provide a solution through Mouse settings so xfce respects programs 'natural scrolling'for both GTK and non-GTK programs?

Please!!! Thank you.

(In reply to Jason Crain from comment #8)
> I came across this in a Debian bug (https://bugs.debian.org/823195) and I
> found a workaround similar to comment #2. This works on Debian Sid, but not
> on Jessie, so this might not work on a system more than a year or two old.
>
> Use normal (non-natural) scrolling in Xfce settings and run a command like:
>
> xinput --set-int-prop 12 "libinput Natural Scrolling Enabled" 8 1
>
> You might have to replace the "12" with the ID of your mouse, which you can
> find with "xinput list". I think this is what GNOME's mouse settings does
> to enable natural scrolling.

I can confirm the command mentioned by Jason works fine here without a reboot or logout/-in. I just checked my Device-ID with the command "xinput list" before.

xubuntu@xubuntu:~$ xinput list
Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech MX Anywhere 2 id=8 [slave pointer (2)]
⎜ ↳ Logitech Unifying Device. Wireless PID:404d id=9 [slave pointer (2)]

So in my case....

          xinput --set-int-prop 8 "libinput Natural Scrolling Enabled" 8 1

...works fine at every scroll-places (Firefox, Mousepad, Whiskermenu, Terminal, etc)

Xubuntu 17.10 - At the moment still in the live-session...just before the installation.

Running Xubuntu 18.04LTS, XFCE 4.12

I have the same issue. and the solution provided by https://bugzilla.xfce.org/show_bug.cgi?id=11193#c8 (comment 8) does not fix the problem for GTK3 and other apps. the technique updated by comment 14 does not fix this either. the fix does not reverse the direction of scroll in apps. but it does reset/reverse-reverse them for the ones in which the reverse scroll was working.

to disable the "fix" I did xinput --set-int-prop 8 "libinput Natural Scrolling Disabled" 8 1 and the system went back to the original state with reverse scroll for xfce apps working and not working for other apps

xinput device properties
Device 'SynPS/2 Synaptics TouchPad':
 Device Enabled (143): 1
 Coordinate Transformation Matrix (145): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
 Device Accel Profile (276): 1
 Device Accel Constant Deceleration (277): 2.500000
 Device Accel Adaptive Deceleration (278): 1.000000
 Device Accel Velocity Scaling (279): 12.500000
 Synaptics Edges (299): 1618, 5366, 1356, 4536
 Synaptics Finger (300): 25, 30, 0
 Synaptics Tap Time (301): 180
 Synaptics Tap Move (302): 251
 Synaptics Tap Durations (303): 180, 180, 100
 Synaptics ClickPad (304): 0
 Synaptics Middle Button Timeout (305): 75
 Synaptics Two-Finger Pressure (306): 282
 Synaptics Two-Finger Width (307): 7
 Synaptics Scrolling Distance (308): 114, 114
 Synaptics Edge Scrolling (309): 0, 0, 0
 Synaptics Two-Finger Scrolling (310): 1, 1
 Synaptics Move Speed (311): 1.000000, 1.750000, 0.035014, 0.000000
 Synaptics Off (312): 1
 Synaptics Locked Drags (313): 0
 Synaptics Locked Drags Timeout (314): 5000
 Synaptics Tap Action (315): 2, 3, 0, 0, 1, 3, 2
 Synaptics Click Action (316): 1, 1, 0
 Synaptics Circular Scrolling (317): 0
 Synaptics Circular Scrolling Distance (318): 0.100000
 Synaptics Circular Scrolling Trigger (319): 0
 Synaptics Circular Pad (320): 0
 Synaptics Palm Detection (321): 0
 Synaptics Palm Dimensions (322): 10, 200
 Synaptics Coasting Speed (323): 20.000000, 50.000000
 Synaptics Pressure Motion (324): 30, 160
 Synaptics Pressure Motion Factor (325): 1.000000, 1.000000
 Synaptics Resolution Detect (326): 1
 Synaptics Grab Event Device (327): 0
 Synaptics Gestures (328): 1
 Synaptics Capabilities (329): 1, 0, 1, 1, 1, 1, 1
 Synaptics Pad Resolution (330): 76, 44
 Synaptics Area (331): 0, 0, 0, 0
 Synaptics Noise Cancellation (332): 28, 28
 Device Product ID (269): 2, 7
 Device Node (268): "/dev/input/event6"
 libinput Natural Scrolling Enabled (280):

Apps affected: (no reverse touchpad scroll)
Okular
 Evince
 Qpdfview
 libreoffice writer
chrome (pdf view specifically)
xfce4-terminal ( this was a surprise)

Not affected:
Thunar
PCMan file manager

(In reply to Xander from comment #15)
> Running Xubuntu 18.04LTS, XFCE 4.12
>
> I have the same issue. and the solution provided by
> https://bugzilla.xfce.org/show_bug.cgi?id=11193#c8 (comment 8) does not fix
> the problem for GTK3 and other apps. [...]

But you're not using the libinput xorg driver there, but Synaptics (it shows all over the place), so no wonder the libinput property will have no effect...

(In reply to Olivier Fourdan from comment #16)
> (In reply to Xander from comment #15)
> > Running Xubuntu 18.04LTS, XFCE 4.12
> >
> > I have the same issue. and the solution provided by
> > https://bugzilla.xfce.org/show_bug.cgi?id=11193#c8 (comment 8) does not fix
> > the problem for GTK3 and other apps. [...]
>
> But you're not using the libinput xorg driver there, but Synaptics (it shows
> all over the place), so no wonder the libinput property will have no
> effect...

thank you for pointing that out, in anycase, the issue remains without a workaround for now? I had tried uninstalling synaptics drivers and using just libinput, but there was no difference to the outcome.

It works fine here, natural scrolling with libinput xorg driver is applied automatically and works on every single tool I try, including those you listed in comment 15.

So, first things first, please provide the output of `xinput list-props <device>` on the touchpad device with “Reverse scroll” set in the UI.

Sorry for the delayed response, Olivier.

Solved/Workaround found

1. I set "reverse scrolling enabled" in touchpad settings
2. I removed "xserver-xorg-input-synaptics" This is the step I had not done earlier.
3. I ran xinput --set-int-prop DEVICE_ID "libinput Natural Scrolling Enabled" 8 1
4. Restarted the system

Now all applications have natural scrolling.

Thank you.

in debian 10, i solved this running
nano /usr/share/X11/xorg.conf.d/40-libinput.conf
man libinput

*** Bug 12575 has been marked as a duplicate of this bug. ***

because the gui options for "Reverse scroll direction" didnt work...

for those looking to automate setup via .bashrc, or alias, or whatever

here's what i used based on suggestions above... I have Kensington Orbit Wireless Trackball...
This way, regardless if id changes, i'm grepping and awking that number...
I have no idea what the "8 1" options are...

xinput --set-int-prop $(xinput list | grep "MOSART Semi. Orbit" | awk '{print $9}' | tr -d 'id=') "libinput Natural Scrolling Enabled" 8 1

so seems to work great for me...

(In reply to dinar from comment #20)
> in debian 10, i solved this running
> nano /usr/share/X11/xorg.conf.d/40-libinput.conf
> man libinput

This worked for me....doing nothing else but adding
Option "NaturalScrolling" "1"
to all the mousy devices in
/usr/share/X11/xorg.conf.d/40-libinput.conf

thanks @dinar!

Xubuntu 20.04

Managed to fix it.

```
sudo apt remove xserver-xorg-input-synaptics
reboot
```

The package `xserver-xorg-input-synaptics` is not included in Ubuntu 20.04 . Not sure why it is included in Xubuntu 20.04 release.

This way you are going to lose the features of the Synaptics driver.

A workaround retaining the driver as well as proposal for a solution I now documented over there: https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/47#note_41309