For some reason update-grub stopped writing changes to menu.lst so i ended up with an old kernel and did not realize. Deleting menu.lst and let update-grub recreate it fixed that Problem. CPU Scaling works with current kernel, sry for reporting this "bug" prematurely.
** Changed in: ubuntu Status: New => Invalid -- [9.04] CPU Frequency Scaling not working anymore https://bugs.launchpad.net/bugs/350943 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs