On Tue, 18 Dec 2007, Matthias Drochner wrote:
> Devices without power management support: i915drm0 pckbc0
>
> The former is dispensable, but without the latter I wouldn't
> be able to type in the sysctl command:-)

You must be attaching pckbc to isa.. please add the following to the 
ISA glue pckbc_isa to register with PMF at attach time:

   if (!pmf_device_register(self, NULL, pckbc_resume))
       aprint_error_dev(self, "couldn't establish power handler\n");
   else
       pmf_class_input_register(self);

Cheers,
Jared