I used the notebook a bit more and now can confirm #5 with my T510 → it's happening on real systems and also if I just scroll.
** Summary changed: - Scrolling using the center wheel bounces... (vbox) + Scrolling using the center wheel bounces -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/928930 Title: Scrolling using the center wheel bounces To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/928930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs