Comment 48 for bug 351586

I have been suggested to use acpi:ATK0101 to detect if this is a Lenovo SL300/SL400 laptops. It works better and the commit is in upstream kernel after .32

commit 14f8af311e7d3e4198cbaade84a34f86505dcb37
Author: Ike Panhc <email address hidden>
Date: Thu Dec 3 07:45:11 2009 +0000

    asus-laptop: add Lenovo SL hotkey support

    Lenovo SL series laptop has a very similar DSDT with Asus laptops. We can
    easily have the extra ACPI function support with little modification in
    asus-laptop.c

    Here is the hotkey enablement for Lenovo SL series laptop.