Touchpad under 16.04 not working

My touchpad sometimes gets stuck (especially on a fresh boot).

In my case, reloading the driver works. First I unload the module from the kernel (using rmmod (remove module)) and then reinsert it (using modprobe):

sudo rmmod i2c_hid
sudo modprobe i2c_hid

If you type

less /proc/bus/input/devices

do you see a touchpad anywhere in that list? If not, then there is no support for your touchpad in the kernel and you are pretty much out of luck, at least for now. If your touchpad is detected then the problem is elsewhere. Typing

xinput

will show if the X server has detected your touchpad. If your touchpad is in that list it may be possible to modify the X config to make it work

Follow these instructions to fix the issue,

modify grub file,

sudo nano /etc/default/grub

replace

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

with

GRUB_CMDLINE_LINUX_DEFAULT="i8042.reset quiet splash"

Save the file and then update grub using,

sudo update-grub command. and then restart your OS,

sudo shutdown -r now