Touchpad scrolling should be enabled by default in Unity8

[kevin gunn]

this used to work,
on a unity8-desktop-session, launch browser
on touchpad scroll up/down
expect webpage to scroll, but currently there is no reaction

the only way to get a webpage to scroll is to grab the page with a mousebutton down and hold it.

[Daniel van Vugt (vanvugt)]

Confirmed (using Apple Magic Trackpad) that two-finger scrolling is non-responsive in webbrowser-app and System Settings. But I have also verified that two-finger scrolling still works in Xmir and native GTK apps. So the regression is specific to Qt.

[Launchpad Janitor (janitor)]

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

[Daniel van Vugt (vanvugt)]

Confirmed also there's a touchpad scrolling regression in Unity8/QtMir. Apps that can scroll wityh the touchpad fine in Mir's demo servers can't do so in Unity8.

[Daniel van Vugt (vanvugt)]

Although... touchpad scroll sensitivity is really bad even where it works in the Mir demo servers.

Maybe Mir regressed the scroll sensitivity and Qt can't deal with the reduced precision or inconsistent events...

[Daniel van Vugt (vanvugt)]

I was wrong. Clients are getting correct scrolling information using two fingers, as seen by:

MIR_CLIENT_INPUT_RECEIVER_REPORT=log

[Daniel d'Andrada (dandrader)]

1 - Open System Settings
2 - Click on "Mouse & Touchpad"
3 - Check the "Scroll with two fingers" box

It then works

[Michał Sawicz (saviq)]

I've put the overarching task to Opinion as we might want to change the default values for these settings.

[Daniel van Vugt (vanvugt)]

The bug will get lost if we leave it as Invalid or Opinion.

Yes we do need to change the defaults, because presently laptop owners can't scroll at all :)

[Daniel d'Andrada (dandrader)]

@vanvugt

Can we at least choose the right packages/projects?

I'm pretty sure ubuntu-ui-toolkit has nothing to do with it whatsoever.

Don't know if qtmir or unity8 would be the place for setting the default config of this libinput(?) stuff...

[Daniel van Vugt (vanvugt)]

Sorry, I don't know everything about the Unity8 architecture and sometimes make mistakes in assigning bugs.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gsettings-ubuntu-touch-schemas - 0.0.7+16.10.20160730-0ubuntu1

---------------
gsettings-ubuntu-touch-schemas (0.0.7+16.10.20160730-0ubuntu1) yakkety; urgency=medium

  * Enable TouchpadTwoFingerScroll and TouchpadTapToClick by default
    (LP: #1603183, #1604032)

 -- Lukáš Tinkl <email address hidden> Sat, 30 Jul 2016 21:17:59 +0000