Re: [Mactel-linux-users] what's the point of POWERplay?

[Sven A. <an...@an...>]

Soeren Sonnenburg schrieb:
> On Thu, 2007-04-05 at 09:15 +1000, Nick Hoffman wrote:
>> i've been following most of the threads relating to ATI's POWERplay
>> and have talked to a few people in OFTC #mactel-linux. several people
>> have said that switching to a lower power state using POWERplay does
>> *not* reduce battery consumption. if that's the case, what's the point
>> of POWERplay?
> 
> This only means that there is something around which consumes a lot more
> power such that switching the graphics adapter to a low power state
> (using ATI's powerplay) is close to invisible in terms of longer battery
> time...
> 
> and yes, c2d owners powerplay (which works on c1d's) does not help here!

Is it possible, that the SMC Controller sets the PowerPlay States in
any way?
Does setting a lower power-state (on a C1D) changes anything in the
PCI Device configuration (especially one of the ASPM- / L-States)?

Regards
 Sven

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