I experienced the same issue in 16.04 but things definitely worked in 16.10 (and still do in a parallel installation, where I use proto=imps resetafter=0)
Updating to 17.04 now results in the same problem again. Mouse clicks are lost regularly, and dmesg shows entries like below: [ 2675.983136] psmouse serio1: issuing reconnect request [ 2677.881985] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 2677.890113] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 2677.898613] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 2677.906617] psmouse serio1: elantech: PS/2 packet [6f 31 21 46 74 37] [ 2677.906626] psmouse serio1: Touchpad at isa0060/serio1/input0 - driver resynced. [ 2677.913984] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 2677.921807] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 2677.931700] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 I am adding this comment because it seems that things worked well in 16.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553264 Title: [Lenovo ThinkPad Yoga 260] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553264/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs