I have bought a new Dell laptop, with 6 GB RAM, running 64 bit Ubuntu 11.10. I have both Windows on one partition and Ubuntu on another partition. When I use Windows, battery lasts for more than 2 hrs but when I use Ubuntu, battery lasts only for a maximum of 1.5 hrs.
I have installed Powertop and it reported a whooping 32 Watts. Initially the complete list in the tunables column reported bad. Even when the toggled the complete list to good, it just reports 31 Watts again.
What can I do to get my power consumption below 10 Watts? Please help!