From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Smoczyk Subject: Re: [Bugme-new] [Bug 13145] New: Processor does not go below C2 if mouse (uhci) is plugged in. Date: Wed, 22 Apr 2009 17:09:20 +0200 Message-ID: References: <20090421142751.b030cba7.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-bw0-f163.google.com ([209.85.218.163]:41419 "EHLO mail-bw0-f163.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750842AbZDVPJW convert rfc822-to-8bit (ORCPT ); Wed, 22 Apr 2009 11:09:22 -0400 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Alan Stern Cc: Andrew Morton , Arjan van de Ven , rui.zhang@intel.com, shaohua.li@intel.com, yakui.zhao@intel.com, bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org, linux-usb@vger.kernel.org, linux-acpi@vger.kernel.org, imrehg@gmail.com On Wed, Apr 22, 2009 at 4:51 PM, Alan Stern = wrote: > In fact the bug report says that 2.6.27 worked okay. Not true, didn't tested 2.6.27 - there wasn't such one in debian repos. > However the changes to uhci-hcd between 2.6.27 and 2.6.28 are quite > minimal. =A0I can't see how any of them could have had this effect. =A0= It > must be due to a change somewhere else in the kernel. Could You please check 26 <-> 27? In my opinion uhci-hcd was able to autosuspend while mouse wasn't used in 2.6.26 and it isn't able to do autosuspend now ( C3 works ok after "rmmod uhci-hcd") This situation is very similar to using usb memory stick non-stop, when watching move for eg. then processor also never goes below C2. Daniel Smoczyk -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html