Ok I check tomorrow and I tell you if the problem persist. For the information :
$ uname -a Linux oripi-164 2.6.20-13-generic #2 SMP Sun Mar 25 00:21:25 UTC 2007 i686 GNU/Linux ** Attachment added: "Output of lspci -vv" http://librarian.launchpad.net/7100936/lspci%20vv -- [feisty] CPU scaling ondemand stay at 100% https://launchpad.net/bugs/99059 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs