I think this is a regression: I've just tested a live USB Linux Mint 17.3 cinnamon (based on ubuntu 14.04) and there the touchpad is not duplicated.
only "SynPS/2 Synaptics TouchPad" is reported by the system -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1591669 Title: duplicate touchpad reported and syndaemon/synclient does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1591669/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs