I have the brightness reversal problem on my lenovo thinkpad sl300, there are other SL series and ideapad owners affected by this. see bug 301524
-- Laptop screen brightness will no longer adjust https://bugs.launchpad.net/bugs/211948 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