Description of problem: Recent updates have broken two fingers scroll support for touchpad. I tried also on other existing users on my laptop. I tried disabling and re-enabling again the proper option in system settings, but it did not help. Version-Release number of selected component (if applicable): plasma-systemsettings-5.3.2-1.fc22.x86_64
could be fallout fron the thumb detection, see bug 1246093. If so, does https://admin.fedoraproject.org/updates/libinput-0.20.0-3.fc22 fix it?
(In reply to Peter Hutterer from comment #1) > could be fallout fron the thumb detection, see bug 1246093. If so, does > https://admin.fedoraproject.org/updates/libinput-0.20.0-3.fc22 fix it? No, it does not fix it
Most likely a dupe of bug 1246868, the distance between the fingers matters. Could it be that you're holding the fingers more than 30mm apart? See https://bugzilla.redhat.com/show_bug.cgi?id=1246868#c7 for more details. If that's not it, please attach an evemu-recording of a scroll sequence that doesn't work.
A new Fedpra update fixed the problem