On Fri, Aug 02, 2013 at 09:16:03AM +0800, Aaron Lu wrote:
Since the sysfs interface works on your system, I think your problem should be different. Can you please file a bug for this? I can provide you with a debug patch and then see what happened. Please attach acpidump when filing the bug.
https://bugzilla.kernel.org, ACPI/Power-Video.
Done: https://bugzilla.kernel.org/show_bug.cgi?id=60680
I did acpidump by hand but it should be ok.
Thanks for looking into this Aaron! :)