The problem is actually kernel modesetting (KMS). With KMS, the kernel takes over control of the screen brightness completely, and ACPI no longer gets to control things. The correct thing to do is to some how hook up the ACPI keys (Fn+{up,down}) to the setpci commands. However, it is unclear at what level all this should happen... Can we use/abuse things like upower? Or is the acpid script the cleanest way to proceed?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/538256 Title: Screen brightness not controllable on Lenovo Ideapad S10-3, U350, and Z360 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs