From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Slagter Subject: c1/c1e/c3/c6/c7 on linux Date: Sun, 22 Nov 2009 12:46:16 +0100 Message-ID: <4B092488.5040801@slagter.name> References: <4B06A7A8.109@slagter.name> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from eriks.xs4all.nl ([83.160.41.216]:40026 "EHLO eriks.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751143AbZKVLqM (ORCPT ); Sun, 22 Nov 2009 06:46:12 -0500 Received: from nemesis.slagter.name (nemesis.ipv4.slagter.name [10.1.3.7]) by nemesis.slagter.name (Postfix) with ESMTP id 90C873B4AD for ; Sun, 22 Nov 2009 12:46:16 +0100 (CET) Received: from artemis.slagter.name (artemis-vlan3.ipv6.slagter.name [IPv6:2001:888:133a:103::1]) by nemesis.slagter.name (Postfix) with ESMTP for ; Sun, 22 Nov 2009 12:46:16 +0100 (CET) Received: from [IPv6:2001:888:133a:103::2] (skylla.ipv6.slagter.name [IPv6:2001:888:133a:103::2]) by artemis.slagter.name (Postfix) with ESMTP id 368363930B8D for ; Sun, 22 Nov 2009 12:46:16 +0100 (CET) In-Reply-To: <4B06A7A8.109@slagter.name> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Ik have two machines, a dell laptop with a mobile core2duo T9300 and a gigabyte desktop with a core i7 920. Both advertise all of these C-states c1/c1e/c3/c6/c7 in the specs (although the core2duo doesn't have c7 I believe). It's not clear at all how linux handles these. The kernel on the T9300 says it uesde C1/C2/C3 of "type" C1/C2/C3, the core i7 says exactly the same. Is this a WiP? A bios issue? It looks like I am missing some states? The kernel I am using is 2.6.31.6