[Mactel-linux-devel] [Fwd: Re: C4 state - Status report]

[Thomas M. <tho...@we...>]

I can't send messages from my th...@m3... mail account to the
mactel-linux-devel mailing list. Need to remember...

-------- Original-Nachricht --------
Betreff: 	Re: [Mactel-linux-devel] C4 state - Status report
Datum: 	Wed, 25 Apr 2007 07:40:21 +0200
Von: 	Thomas Meyer <th...@m3...>
An: 	Davide Bertola <da...@da...>
CC: 	mac...@li...
Referenzen: 	<462...@an...>
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Davide Bertola schrieb:
> On 4/24/07, Sven Anders <an...@an...> wrote:
>   
>> Sheer El-Showk schrieb:
>>
>>     
>>>> On my system osx idles at ~1200 mA, linux does 16 W -> 1600 mA.
>>>>         
>> My MacBook Pro idles at 32W almost constantly.
>>     
>
> 32W means you get almost 1,5 hours. That's ridicolus.
> Maybe your scaling governor is not working, or battery is not calibrated..
> Then you have a macbook pro so you may have that problem with ati drivers.
>
>   
>>>> It's also hotter when using linux. Why ?
>>>> I guess:
>>>> - Lack of C4 state support.
>>>>         
>> I think Linux is using C4(E) state too, but it does not stay as long
>> as MacOSX in it.
>>
>>     
> You think, but it's not true. linux sees onlin C1 C2 and C3 state. On
> some macbooks pro only C1 and C2. You can verify that looking
> somewhere in /proc or /sys I don't remember now.
>
>   

Better trust him. Linux does use C4 state. See also
http://www.mail-archive.com/mac...@li.../msg00918.html