another way to "fix" the bug is to suspend/resume. Indeed, after resume, the false device is removed.
$ tail -n 3 /var/log/Xorg.0.log (EE) SynPS/2 Synaptics TouchPad: Read error 19 [ 285.414] (II) config/udev: removing device SynPS/2 Synaptics TouchPad [ 285.430] (II) UnloadModule: "synaptics" (but then the touchscreen doesn't work anymore... but this is probably a different bug) -- 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