To clarify comment #55: This new backlight control mechanism is still considered "experimental". Matthew Garrett has proposed the core patches to the intel-gfx and linux-kernel groups, where they are still pending review. I will continue to report changes to the status of the patches here.
@Tito - Glad to hear that it works on your Lenovo IdeaPad Z360. Please do be sure to post whether or not the second parameter is actually needed for that model.
To clarify comment #55: This new backlight control mechanism is still considered "experimental". Matthew Garrett has proposed the core patches to the intel-gfx and linux-kernel groups, where they are still pending review. I will continue to report changes to the status of the patches here.
@Tito - Glad to hear that it works on your Lenovo IdeaPad Z360. Please do be sure to post whether or not the second parameter is actually needed for that model.