Bug#823195: evince-common: Mouse Inverted Reversed Scrolling Does not Function

[Carl N]

Hello Jason


I tried your recommendation *how you figured this out I will never
understand* it worked on GTK3 examples and reversed the scroll direction
for evince.... but now any other non GTK3 program the reverse scrolling
direction feature *as set in the mouse settings panel in xfce* is not
obeyed.

Carl

On Tue, May 10, 2016 at 4:33 PM, Jason Crain <jason at inspiresomeone.us>
wrote:

> On Sat, May 07, 2016 at 03:08:13PM -0400, Carl Nikolov wrote:
> > It is a bluetooth mouse can you test this ?
> >
> > It's probably different in this case
>
> I do not have a bluetooth mouse to test with.
>
> I did get around to putting an Xubuntu live image on my USB keychain so
> I could test with something better than a virtual machine.  The result
> was the same.  Xfce's reverse scroll does not work with GTK3 apps.
> Instead of this being unique to Evince, I strongly suspect that the
> problem you've experienced is that Xfce's reverse scrolling does not
> work with *any* GTK3 app.
>
> Please try this.  Install the gtk-3-examples package and run the
> following program:
>
>   gtk3-demo --run flowbox
>
> And see if the reverse scrolling works correctly.  From my testing,
> gtk3-demo does not follow Xfce's reverse scroll setting, demonstrating
> that this problem is not specific to Evince.
>
> If that's the case, that it's all GTK3 apps and not just Evince, the
> solution is going to be that Xfce needs to set some libinput properties
> when enabeling reverse scrolling.  For a workaround, on my system (in a
> virtual machine) running this command and not using Xfce's reverse
> scroll option fixes it:
>
>   xinput --set-int-prop 12 "libinput Natural Scrolling Enabled" 8 1
>
> You'll need to replace "12" with whatever your device ID is, which you
> can find with "xinput --list".  There are other recommendations for
> xinput settings at (https://bbs.archlinux.org/viewtopic.php?id=179667)
> if that doesn't work.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.alioth.debian.org/pipermail/pkg-gnome-maintainers/attachments/20160512/2b525946/attachment.html>