I'm using Lubuntu 11.10 on a Toshiba NB-500. The new Kernel 3.0 partially solved some issues related with overheating and absence/or/unstable wi-fi connection. But I see no improvements in power management when it comes to battery life: it only lasts for 3/4 hours on Linux (7/8 hours on Windows Starter). When using Windows, the Toshiba software, mainly, the Eco Utility, are decisive to achieve those results. I wonder if anyone knows a specific trick to increase battery life on this netbook in Linux. Please note, I'm NOT looking for general tips like 'powertop', 'cpu scalling', 'screen brightness', and so on. I've tryed all that and it didn't work, so don't mark this thread as a duplicate question. Thank you!
There are many people reporting success with Jupiter.
Automatically adjusts CPU mode for AC or battery Automatically tunes the kernel for AC or battery Automatically tunes hardware for AC or battery Supports Asus Super Hybrid Engine (SHE) Remembers and applies last selected configuration Fast and efficient, low resource utilization Easily Customizable
I've found a version of Jupiter that works on (L)ubuntu oneiric ocelot:
sudo add-apt-repository ppa:webupd8team/jupiter sudo apt-get update sudo apt-get install jupiter