From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261161AbULZUu7 (ORCPT ); Sun, 26 Dec 2004 15:50:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261165AbULZUu7 (ORCPT ); Sun, 26 Dec 2004 15:50:59 -0500 Received: from louise.pinerecords.com ([213.168.176.16]:32490 "EHLO louise.pinerecords.com") by vger.kernel.org with ESMTP id S261161AbULZUuz (ORCPT ); Sun, 26 Dec 2004 15:50:55 -0500 Date: Sun, 26 Dec 2004 21:50:54 +0100 From: Tomas Szepe To: linux-kernel@vger.kernel.org Subject: 2.6.{9,10}: C3 not working once USB driver gets loaded (ThinkPad T40p) Message-ID: <20041226205053.GA27671@louise.pinerecords.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, In recent kernels (tried 2.6.9, 2.6.10), after I load the uhci_hcd module, the processor never goes to state C3. Unloading the module again puts things back to normal. The system is an IBM ThinkPad T40p. Is the USB driver setting some kinda flag in the ACPI subsystem to achieve this behavior intentionally or is this a bug? Thanks, -- Tomas Szepe