Re: C2, C3 and bus master activity

[Janosch Machowinski <scotch-cGBD8117FJM@public.gmane.org>]

pumpkin wrote:
> Hello
> 
> I tested this by removing kernel/driver/usb/* and rebuilding initrd (just to 
> be sure). It did not change anything for console (still 50:50 between C2 and 
> C3) and made Xorg crash pretty hard.
> 
> Do you think removing all the other external buses (Firewire, ethernet, 
> WLAN ,..) would change something ? 
> 
Sometimes an active WLAN driver causes bus master activity...
You also should not use an USB Mouse...

And by the way, what's wrong with 50:50 C2 C3 ?
This seems pretty normal to me.

> Could cpufreqd be part of the problem ?
> 
> Thanks,
> 
> On Tuesday 19 July 2005 22:18, Bob Lees wrote:
> 
>>Hi
>>
>>In a word USB.  I don't fully understand why, but if I disable USB then
>>both my laptops will go into C3 or C4, with USB enabled stays in C2.
>>
>>Laptops are Compaq EVO 800c and IBM T42p both running SUSE 9.3 with a stock
>>SuSE kernel 2.6.11-suse modified
>>
>>Bob
>>


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