I've installed the latest version of gnome-settings-daemon and it's still requires super user privileges.
$ apt-cache policy gnome-settings-daemon gnome-settings-daemon: Installed: 3.2.2-0ubuntu9 Candidate: 3.2.2-0ubuntu9 Version table: *** 3.2.2-0ubuntu9 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915600 Title: Changing brightness request root (super user) permission To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/915600/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs