On Sun, 15 Jul 2007 [email protected] wrote:
> >> for a pure hibernate mode, you will be powering off the box after saving
> >> the suspend image. why are there any special ACPI modes involved?
> >
> > Because, for example, on my machine the status of power supply (present
> > vs not present) is not updated correctly after the restore if ACPI callbacks
> > aren't used during the hibernation. That's just experience and it's in line
> > with the ACPI spec.
>
> so if a machine is actually powered off the /dev/suspend process won't
> work?
>
> remember that the system may run a different OS between the hibernate and
> the resume, makeing any assumptions about what state the hardware is in
> when you start the resume is a problem.
As I understand it, running a different OS between the hibernate and
the resume would violate the ACPI spec.
Alan Stern
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