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From: Len Brown <len.brown@intel.com>
To: "Tvrtko A. Ursulin" <tvrtko@ursulin.net>
Cc: linux-acpi@vger.kernel.org
Subject: Re: A bug or not? No C states on Turion64 ML-34
Date: Tue, 19 Sep 2006 23:16:25 -0400	[thread overview]
Message-ID: <200609192316.26355.len.brown@intel.com> (raw)
In-Reply-To: <200609171646.46064.tvrtko@ursulin.net>

On Sunday 17 September 2006 11:46, Tvrtko A. Ursulin wrote:

> On my new HP Pavilion s7510 PC I seem to be missing C states
...
> tvrtko@astrid:~> cat /proc/acpi/processor/CPU0/power
> active state:            C1
> max_cstate:              C8
> bus master activity:     00000000
> states:
>    *C1:                  type[C1] promotion[--] demotion[--] latency[000] 
> usage[00000000]

Don't be bothered by the 0 usage, C1 always works.

Dunno if this processor and BIOS support more C-states or not.
Maybe somebody else who has one has checked it out?

I have seen an ML-28 which support C1 and C3 -- though maybe
an ML-28 is different from an ML-34...

It is possible that an additional C-state will appear when you switch to battery mode.
If you post the output from acpidump it will be easy to tell.

cheers,
-Len

  reply	other threads:[~2006-09-20  3:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-17 15:46 A bug or not? No C states on Turion64 ML-34 Tvrtko A. Ursulin
2006-09-20  3:16 ` Len Brown [this message]
2006-09-20 18:51   ` Tvrtko A. Ursulin

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