By updating mba6x_bl module this issue went away. I am unable to replicate it on 4.4.x as there are build issues (initial is with stack protection gcc flag which does not yet exists in trusty, then something about signing module).
Feel free to close this, as it gets resolved with module update. Tnx for hints though, b. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1518767 Title: Macbook Air 6.2 brightness buttons stopped working after 3.13.0-63 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1518767/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
