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    SubjectRe: Hibernation considerations
    On Mon, 16 Jul 2007 david@lang.hm wrote:

    > > 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?

    > I can't think of anything much more frustrating then thinking that I
    > suspended a system and then discovering that becouse the battery went dead
    > (a complete power loss) that the system wouldn't boot up properly. to me
    > this would be a fairly common condition (when I'm mobile I use the machine
    > until I am out of battery, then stop and it may be a long time (days)
    > before I can charge the thing up again) this would not be a reliable
    > suspend as far as I'm concerned.
    >
    > for suspend-to-ram you have to worry about ACPI states and what you are
    > doing with them, for suspend-to-disk you can ignore them and completely
    > power the system off instead.

    If the only problem with doing this would be lack of wakeup support
    then I'm all for it. There must be a lot of people who would like
    their computers to hibernate with power drain as close to 0 as possible
    and who don't care about remote wakeup. In fact they might even prefer
    not to have wakeup support, so the computer doesn't resume at
    unexpected times.

    Alan Stern

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