So I just got the update to kernel 4.10 and now the touchpad sensitivity has been severely reduced and feels, I can only describe as, sloppy. It now lacks precision and I can't adjust that. Is there is fix for this? Reverting back to kernel 4.8 on boot does not fix this. Neither does moving to 4.12. This might be related to a libinput update that came along with the kernel update.
I've opened a bug report on Launchpad. I appears to have messed up the threshold and acceleration settings.
System is Dell Insprion 15 7579 - i7200U i5 Kaby Lake.