It's now working! Just like what I thought, I missed something. Thank you very much, Kamal!
-- Screen brightness control fails on Dell Studio 1558 https://bugs.launchpad.net/bugs/568611 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
