Using the live-cd of natty(11.4) alpha 2, the problematic behaviour remains unchanged.
** Changed in: linux (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/677274 Title: Brightness control on Lenovo Ideapad u450p behaves non-monotonically -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs