Very similar case now: The two-finger scrolling does not work at all, as if not enabled. Disable and back, reboot, power off and on ... nothing helped it.
DistroRelease: Ubuntu 18.04 Uname: Linux 4.15.0-62-generic #69-Ubuntu SMP Wed Sep 4 20:55:53 UTC 2019 x86_64 CurrentDesktop: Gnome -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1410540 Title: Touchpad scrolling in Ubuntu Software Centre is broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/1410540/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs