I confirme the issue.
I use Ubuntu 17.10 and at every reboot I lost the touchpad, sometimes in Windows (10) too…
To avoid the problem the laptop isn’t powered down… Only sleeping…
The only way I have found to restore touchpad is to boot with USB key with Ubuntu 17.10 (isorespined).
This problem happens only when I boot on Ubuntu… I also suspect rEFInd… I’m not a specialist but it seems not possible to boot Ubuntu 17.10 with Grub (Apollo Lake problem)…
If you find a solution plz post… 🙂
