Comment 7 for bug 1715479

While looking around for code that might resume the touchpad, I noticed that the libinput master code was a bit different to the version we ship: there's a tp_resume_conditional() function that checks sendevents.

And checking the history shows up this patch:

  https://cgit.freedesktop.org/wayland/libinput/commit/src?id=53d53dd18ef14484d632421027cd7b6130013cf0

Fedora is also shipping this as a patch against their libinput-1.8.2 in Fedora 27:

  https://src.fedoraproject.org/rpms/libinput/blob/f27/f/0001-touchpad-don-t-resume-a-disabled-touchpad.patch