[lubuntu] Very high battery drain in 11.10

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http://ubuntuforums.org – Hello, Since a few days I have a new laptop (Alienware M17x r3); and I wanted to install the newest Ubuntu version on it. (Was using 10.10 on my old laptop) Anyway, my new laptop can only work for about an hour with a fully charged battery (opposed to a few times more when working in Windows 7). I checked the battery drain rate and it's the whole time around 90W (which seems very high to me; my old laptop only had something like 25W). I think ubuntu doesn't scale my CPU speed and thus runs on highest speed the whole time. (This makes my laptop also quite hot in Ubuntu) I tried set (Hardware)