The latest mainline kernel 3.14.0-031400rc2-generic fixed the bug. I can now controll brightness both using the Control Center and also the Fn F9 and Fn F10 key strokes. I added appropriate tags to the bug.
** Tags added: kernel-fixed-upstream kernel-fixed- upstream-v3.14.0-031400rc2-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1257766 Title: can not reduce brightness on HP ZBook 15 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1257766/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
