Looking at the ACPI 4.0 spec, it appears that we need to set bit 1 of the platform-wide _OSC capabilities DWORD2 to indicate to the firmware that we will evaluate _OST on _PPC changes, yes? thanks, Len Brown, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html