> I have an acpidump of a X61, and it may also send notifications in _STA
> method.
> Please please try the following patch and see if it helps.
> and it would be great if you can attach the acpidump of your laptop.
>
> In some BIOSes, every _STA method call will send a notification again,
> this cause freeze. And in some BIOSes, it appears _STA should be called
> after _DCK. This tries to avoid calls _STA, and still keep the device
> present check.
>
http://bugzilla.kernel.org/show_bug.cgi?id=10431