01-02-2018 07:46 PM
The issue has already solved, just writing for thos who might have the same issue.
One day when I turned the notebook on, the keyboard and touchpad did not work. Restarting ddi not help.
The only thing I put my attention that time was the battery is almost discharged, so I turned the notebook off, closed the lid, and plugged it in. The next day I turned it on, and everything was working.
Another idea on why it happened: when the notebook lid opens and closes, it might switch to tablet mode, so that the keyboad and touchpad are off.