Re: sleeping the system vs hibernate or suspend
On Mon, 3 Jan 2011 08:44:22 -0600
Javier Vasquez <j.e.vasquez.v@gmail.com> wrote:
> On Sun, Jan 2, 2011 at 1:18 PM, <briand@aracnet.com> wrote:
> > ...
> > Someone posted (to this list) a simple command line for sleeping the
> > system.
> >
> > ...
>
> acpitool -S => suspend to disk (hibernate) => Puts machine into
> S4. acpitool -s => suspend to ram (sleep) => Puts machine
> into S3.
>
> man acpitool
>
> Putting the machine into S3 is problematic for several HW. In several
> cases HW goes to S3 OK, but it has trouble coming back. That wouldn't
> be much of a problem unless the HW is your video card, :-)
>
> There are multiple ways to do the same thing, there are the pm-* tools
> as well, and several other ones. I just prefer using acpitool, which
> I have for years...
>
ding ding ding - the winner.
I remembered the -s but couldn't remember the command :-)
Interesting though, I didn't realize that it was suspending to RAM.
Suspend to RAM says, to me, that it's actually copying current run-time
state to RAM as opposed to just putting the hardware into a low
power state, e.g. stopping the CPU, sleeping ethernet, etc... ?? So,
for example, the RAM doesn't actually need to be touched since
everything just remains where it is memory.
Well, time to read about acpi in more detail.
Now we'll see if it works with this hardware.
Thank you !
Brian
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