[linux-pm] PM models

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On Tue, 2004-11-02 at 00:54 +0100, Pavel Machek wrote:

> I believe it would be nicer to SUSPEND, because apm bios may fail to put
> devices into powersave...
> 								Pavel
> PS: The mail with list of states was sent before I received this one...

This is tricky... APM will eventually try to use some devices after we
do our suspend pass, for example, it will try to suspend the video chip
into "APM" mode (which in most case for ATIs is D2 state). The problem
is that if the device is already suspended, the BIOS may well crash
trying to tap it's registers...

I'm not sure what is the proper policy with APM, but then, I have the
APM maintainer not far from my desk so ... :)

Ben.





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