Scrap that, Kevin Kofler pointed me to this post:
https://lists.fedoraproject.org/pipermail/devel/2014-December/205490.html
Which I unfortunately missed, so the info I got from KDE upstream is
not correct because the KDE spin adds an extra component which does
directly talk to the low level Xorg drivers, and there are plans to
integrate this into kdebase upstream.
As a result of this Peter Hutterer and I have been rethinking the
plans for switching to xorg-x11-drv-libinput for F-22. So now we plan
to introduce xorg-x11-drv-libinput more carefully / slowly.
The new plan is to only do this for the Desktop product, and thus for
the GNOME desktop.
We've always planned to keep the old drivers around and allow people
to use those instead as a fallback plan, and the GNOME input configuration
changes which are in the works will also keep supporting the old drivers.
I've updated the feature page to reflect this:
https://fedoraproject.org/wiki/Changes/LibinputForXorg
I guess given the changes FESCo may want to re-visit this feature.
If I understand correctly, this would amount to the inability to install both GNOME and
KDE side-by-side, with both desktops’ touchpad configuration dialog working without manual
involvement (because the driver change is done by installing/uninstalling packages or
perhaps xorg.conf changes).
That’s not the end of the world but also not ideal. Is there anyone interested in porting
the kcm module in time for F22?
Mirek