Solution of over sensitive touch pad, Linux

Install ubuntu on VAIO ultrabook. The large touchpad is too sensitive that it often register my palm.

The palm detection can be fine-tuned, but here is a solution if you don't need that large a touchpad, and you want to 'tap-to-click'

open a terminal, use the 'synclient' command to find the current setting of your touchpad. The LeftEdge, RightEdge, TopEdge, and BottomEdge tells you roughly the dimension of your touchpad.

then you can use 'synclient AreaRightEdge=5000' to reduce the dimension of your touch pad. You may want to finetune it yourself. If the number is too small, that might deactivate your touchpad, don't worry, just set it to a larger number.