|Touchpads don't work with Sony's VAIO Y series out of the box. The solution is a boot cheatcode.
1. Non installed systems (firing up the ISO)
Add "i8042.nopnp=1" to grub's parameter line.
2. Installed systems
Edit /etc/default/grub and add "i8042.nopnp" to the line starting with GRUB_CMDLINE_LINUX. The line looks like
If you have more than one boot parameter, separate them by a blank.
After saving the change run
and reboot. Touchpad will work.