Dual boot on a laptop. After working in Windows, the touchpad breaks in Ubuntu. Why?

Question

ubuntu

Input: Ubuntu 14.04 with latest updates, Windows 10 with latest updates. Laptop - Lenovo Z500, elan touchpad (I don't remember the model, I'll clarify if necessary).
The touchpad breaks like this:
- not through the settings (the button is switched, but there is no effect);
- not through the console (parameter synclient TouchpadOff does not change);
- not through a hot key (fn + F6 in my case - when everything is normal, when pressed, a notification pops up with a touchpad icon showing its status; in case of a breakdown, accordingly, nothing pops up);
the state of the touchpad does not change.
I didn’t understand the pattern, but over time everything fixes itself: either after a few days, or after several reboots from Ubuntu to Ubuntu, or after updates ... I didn’t find, in general, a pattern.
But, as soon as I boot from Windows, do my work (mostly using Autocad) and go back to Ubuntu again - the touchpad does not work...(
PS: the touchpad Indicator program is installed from the repository, but when I try to run it, it gives a system error.
PPS : I'm just new to Ubuntu, please don't scold if the question is elementary and the solution is obvious, but explain on your fingers.Thank you all in advance.

Answer 1

The problem is strange, of course.
Does it always turn on from a cold start (not a reboot)? I think something may be related exactly to how the reboot works. Try turning off Windows completely and then turning it back on.
Even in Windows there is such a thing as kernel hibernation. That is, the OS is not completely turned off, in the power settings it can be signed as a quick start or something like that, disabling this option will slow down Windows, but can solve the problem in Ubuntu.