Update: This post is outdated. Please follow this new guide to prevent overheating in Linux laptops.
Think your laptop running on Ubuntu 12.10 is burning your balls off? Cooldown. We have a nice little app, Jupiter, that could help reducing the temperature of your notebook.
Install Jupiter in Ubuntu 12.10:
sudo add-apt-repository ppa:webupd8team/jupiter sudo apt-get update sudo apt-get install jupiter
How To Use Jupiter To Solve Over Heating Issue:
Once you have installed Jupiter, go and search for it in Unity dash:
Then from the top menu, choose Performance->Power Saving:
And then you need to do nothing. After some time you should notice an improvement in performance and your laptop less heated than before.