From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arthur Huillet Subject: Question about AthlonXP on nforce 2 : C2-C3 states Date: Sun, 5 Feb 2006 15:21:20 +0100 Message-ID: <20060205152120.1688bd7b.arthur.huillet@agoctrl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from ABesancon-103-1-6-191.w193-252.abo.wanadoo.fr ([193.252.219.191]:60550 "EHLO Chani.agoctrl.org") by vger.kernel.org with ESMTP id S1750820AbWBEOVT (ORCPT ); Sun, 5 Feb 2006 09:21:19 -0500 Received: from Chani.agoctrl.org (Chani.agoctrl.org [192.168.0.2]) by Chani.agoctrl.org (Postfix) with SMTP id B224265F9E for ; Sun, 5 Feb 2006 15:21:20 +0100 (CET) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Hello, I've recently discovered that my system didn't seem to go into C2/C3 states. In fact, they're not even recognized : # cat /proc/acpi/processor/CPU0/info processor id: 0 acpi id: 0 bus mastering control: no power management: no throttling control: no limit interface: no # 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] Would you happen to know why the Cx states are not seen ? Also, isn't there supposed to be bus mastering control available ? My mainboard is a Asus A7N8X rev 1.xx (nforce2). The kernels I tried with no success in whatever case are 2.4.29 and 2.6.15.2. Unfortunately, google doesn't seem to know much about this problem... -- Greetings, A.H.