Re: Missing C-States on Core Duo
On Sun, Feb 04, 2007 at 04:19:01PM +0100, Frank Ursel <firstname.lastname@example.org> wrote:
> On my laptop  shows a maximum of 8 c-states. But only 3 are in use.
> Where are the others gone? The output of dmesg shows only three of
> them, too. The max_cstate reports 8 so whats wrong with my system? As
> far as I know, there should be at least a C4-state. Is there any
> parameter, I need to pass through the kernel or is it a damn limitation
> of my system or what else went wrong? The laptop is a Fujitsu-Siemens
> S7110 and I'm using a brand new Etch.
FWIW, here, it's
active state: C2
bus master activity: c8444672
C1: type[C1] promotion[C2] demotion[--] latency usage duration
*C2: type[C2] promotion[--] demotion[C1] latency usage duration
max_cstate is also C8, but I only have 2 C-states when on AC power, and
2 more C-states show up when on battery. I don't think you have to