Re: Hibernation considerations

[david]

On Wed, 18 Jul 2007, Matthew Garrett wrote:

> On Tue, Jul 17, 2007 at 08:54:24PM -0700, david@xxxxxxx wrote:
> > On Wed, 18 Jul 2007, Matthew Garrett wrote:
> >
> > > On Tue, Jul 17, 2007 at 08:19:32AM -0700, david@xxxxxxx wrote:
> > > > On Tue, 17 Jul 2007, Matthew Garrett wrote:
> > > > > Powering off rather than using S4 means you lose most wakeup device
> > > > > support. That would be a functional regression compared to the current
> > > > > code.
> > > >
> > > > only if the kexec isn't able to initialize those devices.
> > >
> > > If you aren't using ACPI, you probably don't know how to.
> >
> > the current kexec patch to allow you to move back to the original kernel
> > requires ACPI be disabled to work.
>
> Which means it isn't putting the hardware into S4, which means that you
> don't get the platform wakeup events.

Ok, I was misunderstanding what you meant by wakeup device support. if you 
are meaning things like wake-on-lan then yes, you do loose that with no 
ACPI support, but that is acceptable to many people. I understand it's not 
for some, and I'm not saying that this should be the only type of suspend, 
but I'm also saying that this should be one option.

David Lang
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