I'm on HP Probook 4320s with Xubuntu. After upgrading from 13.04 to 13.10 I cannot change the backlight either.
** Also affects: unity Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181512 Title: Cannot adjust screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1181512/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs