Messages in this thread | | | Date | Sun, 15 Jul 2007 19:15:47 -0400 (EDT) | From | Alan Stern <> | Subject | Re: Hibernation considerations |
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On Sun, 15 Jul 2007 david@lang.hm 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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