Not that anyone seems to taking note of this bug, but for the sake of postarity, I done some digging and it seems to be related to the 3.5 kernel update. A simple revert to 3.2 kernel will solve the bug, if you are using 12.04 anyway.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1020435 Title: [xorg-edgers] Libnotify/brightness settings no longer displays/change with fn keys To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1020435/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
