[ltp] how to determine the true c state?

[Matthias Rieber]

Hi,

Robert Tomsick wrote:
> On Sun, 2009-11-22 at 23:53 +0100, Matthias Rieber wrote:
> 
>> I've switched from Ubuntu 8.10 to 9.10. In 8.10 powertop reported C6 as 
>> lowest state (in non-AC mode). After upgrading to Ubuntu 9.10 it only 
>> shows C4 in powertop.  Unfortunately there was a bios update in between, 
>> so I don't know if this was caused by the kernel or bios update or any 
>> other chage during the distribution update.
> 
> Just a quick question: are you taking these readings on AC or on battery
> power?

battery power. I've noticed that C4 is the lowest state while on AC. I 
also set alle bios options to battery saving options.

matthias