Install ubuntu 14.04 and I can not find the touchpad, use the terminal xinput list order, and note that does not detect it, I have looked everywhere to solve it, but several pages say that if the system does not detect it, is the kernel problem how can I fix this problem?.
Reinstall the device driver and see:
sudo apt-get --purge autoremove xserver-xorg-input-synaptics && sudo apt-get install xserver-xorg-input-synaptics
I just solved it by changing touchpad from advanced to basic in main tab of bios settings.
You can access to BIOS by turning off laptop, and then turn it on again and press f2 after ACER logo showed up.