After several weeks using Ubuntu on my Thinkpad R400, there are several features which doesn’t work out-of-the-box. One of them is Lenovo Thinkpad Active Protection System. Gladly, I found some nice article on the internet, then try to activate Active Protection System using those tutorial. It’s a good tutorial, now the Active Protection System is activated under Ubuntu 9.10 Karmic Koala.

[Thinkpad HDAPS in Ubuntu 9.04 Jaunty]