Re: RFA: acpi-support -- glue layer for translating laptop buttons, plus legacy suspend support
On Sun, 26 Apr 2009, Matthew Garrett wrote:
> Henrique de Moraes Holschuh <hmh@debian.org> wrote:
> >On Tue, 21 Apr 2009, Michael Biebl wrote:
> >> > powertop encourages to disable polling, so it is a big point.
> >>
> >> I agree with you in general, but I doubt polling every 2 or 16 seconds will make
> >> any significant difference power consumption wise.
> >
> >It does. It won't be much, but still... in any proper new laptop, that
> >drive will have a non-broken firmware that does SATA power-saving and AN,
> >and you are waking it up.
>
> Hal checks the drive capabilities and shouldn't be polling drives that
> support async notifications. Is that code not working for you?
It is working fine, thanks for the head's up about it disabling the poller
on AN-capable devices (my laptop is not one of them, but I found one which
can do that to test).
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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