I am running Mint 9 and Ubuntu 10.04 on my S10-3. Very happy with the platform overall, but as many have found their screen brightness keys do not work. My web research indicates that the latest kernels will have a fix, but that probably won't be commonly available until the end of 2010. In the mean time I have implemented the following to get easy control over the brightness. It's not perfect but it gets the job done. Create three launchers on the desktop with one each of the following commands. Select the screen brightness icon and title each launcher as Low, Med , High Low> sudo setpci -s 00:02.0 f4.b=35 Med> sudo setpci -s 00:02.0 f4.b=55 High> sudo setpci -s 00:02.0 f4.b=75 credit to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/538256http://lgallardo.com/en/2010/08/31/control-del-brillo-de-lenovo-s10-3-video-gma-3150-on-linux/
Maybe this topic is outdated, but probably this info will be useful for S10 linux users: official ubuntu kernel 2.26.35-25+ works good. This means new Ubuntu, Mint 10 and similar forks works good with brightness adjustment with no additional tools or tweaks.