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Subjectshpc with acpi=off?
I have a box where shpc works fine with acpi,
as well as when acpi is not built into kernel,
but fails with acpi=off
Some debugging seems to indicate that
acpi_get_hp_hw_control_from_firmware
fails with acpi=off.

Is this a bug or is there a reason to prevent shpc
from working in this setup?
Do we even care about acpi=off?
Assuming we want to make acpi_get_hp_hw_control_from_firmware
succeed with acpi=off, what is the best way to do this?
Check acpi_pci_disabled?

Thoughts?
--
MST


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