I've read various posts about extending battery life of laptops and notebooks. And I've done various of things to extend it. But I'm wondering does touchscreen take power and how much? Would it be good idea to disable touchscreen and is it even possible?
I'm using lenovo ideapad s210 touch. And I don't need touchscreen at all.
edit: sorry forgot to say that I'm using ubuntu 12.04 LTS, 64bt.