I also want to underline the importance of activating laptop-mode tools nice and easily in Ubuntu - to me, laptop-mode-tools was the only thing why I gave Linux a try because it makes such a great heat reduction on my Dell D600 with well-known heat issue.
I just wanted to confirm that I was also affected by the problem and the patch together with instructions in wiki article (https:/ /wiki.ubuntu. com/PowerManage ment#head- ab94c99627b86e9 fbb29a09d331617 8269c3e764) that ceg has cited, fixed the problem in Ubuntu 8.04.
I also want to underline the importance of activating laptop-mode tools nice and easily in Ubuntu - to me, laptop-mode-tools was the only thing why I gave Linux a try because it makes such a great heat reduction on my Dell D600 with well-known heat issue.