Re: Hibernation considerations

Pavel Machek
2007-07-21T10:17:41Z

Hi!

> >Part of the problem here is that ACPI already has its own terminology,
> >and you're trying to invent a new one instead of using the existing
> >one.
> >
> >I agree, it would be good to have a non-ACPI-specific hibernation mode,
> >something which would look to ACPI like a normal shutdown. But I'm not
> >so sure this is possible.
>
> why would it not be possible?
>
> >You have to understand that the ACPI spec is weird and complex. The
> >mere fact that you have written a system image to disk changes the way
> >ACPI regards the shutdown procedure. Even though you may treat all the
> >devices and the rest of the hardware exactly the same, it's a different
> >operation as far as ACPI is concerned, with different requirements.
> >
> >Yes, it's bizarre. Why do you think so many people have complained so
> >vehemently about ACPI for all these years?
>
> so let's act as if ACPI doesn't exist and make a suspend-to-disk that
> works without it and looks to ACPI like a complete power off/on cycle (but
> looks to the user like a suspend/resume cycle)

...if you act as if ACPI does not exist, you'll loose AC/battery power
status upon resume, and maybe more, because ACPI handles that.
Pavel
--
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