Just tried the suggestion in note #5, and so far it works, but can't be sure as the problem is inconsistent. (Of course had the create the xorg.conf file, as it doesn't exist.)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/773710 Title: [Lenovo T420s] Brightness keys make the indicator work, but don't actually dim or brighten the screen -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
