Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964885AbVJaXMi (ORCPT ); Mon, 31 Oct 2005 18:12:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964886AbVJaXMi (ORCPT ); Mon, 31 Oct 2005 18:12:38 -0500 Received: from smtp3.nextra.sk ([195.168.1.142]:31754 "EHLO mailhub3.nextra.sk") by vger.kernel.org with ESMTP id S964885AbVJaXMi (ORCPT ); Mon, 31 Oct 2005 18:12:38 -0500 Message-ID: <4366A4DE.9020406@rainbow-software.org> Date: Tue, 01 Nov 2005 00:12:30 +0100 From: Ondrej Zary User-Agent: Mozilla Thunderbird 1.0.7 (X11/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 CC: Ray Lee , "Kernel, " Subject: Re: [BUG 2579] linux 2.6.* sound problems References: <53L1x-6dC-13@gated-at.bofh.it> <53LkE-6QU-5@gated-at.bofh.it> <53LkW-6QU-49@gated-at.bofh.it> <53LEq-7gr-7@gated-at.bofh.it> <43667406.9070104@gmail.com> In-Reply-To: <43667406.9070104@gmail.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2126 Lines: 62 Patrizio Bassi wrote: > Ray Lee ha scritto: > >> On Mon, 2005-10-31 at 18:04 +0100, Patrizio Bassi wrote: >> >> >>>> On 10/31/05, Patrizio Bassi wrote: >>>> >>>> >>>>> starting from 2.6.0 (2 years ago) i have the following bug. >>>>> link: http://bugzilla.kernel.org/show_bug.cgi?id=2579 >> >> >> >>>>> fast summary: >>>>> when playing audio and using a bit the harddisk (i.e. md5sum of a 200mb >>>>> file) i hear noises, related to disk activity. more hd is used, more chicks >>>>> and ZZZZ noises happen. >>>> >>>> >>>> Does hdparm -i (or -I) show differences between the 2.4 kernels and >>>> 2.6? 2.6 has new IDE drivers, and so perhaps your system isn't using >>>> the best driver any more. >>>> >>>> You may also want to compare lspci -vv of your IDE controller and >>>> sound card between 2.4 and 2.6, and see if there are any differences. >>>> >>>> No guarantees, but this is where you'd start. >>>> >>>> >>>> >>>> >>>>> Ready to test any patch/solution. >>>> >>>> >>>> >>>> Try that. If nothing obvious appears in the examination, you may want >>>> to try the 2.6.14-rt1 patchset from Ingo Molnar. It's designed to >>>> reduce latency in the kernel, but also has a latency tracer that may >>>> be particularly useful for your problem. (Assuming it's a latency >>>> issue, and not a hardware misconfiguration due to 2.6 doing something >>>> wrong.) I've seen something like this yesterday on ECS P6EXP-Me board (i440EX chipset) with onboard CMI8338 PCI sound chip. The sound was distorted when e.g. moving mouse in Windows. When I disabled "PCI 2.1 support" in BIOS, the problem disappeared in Windows. But when I booted Slax LiveCD, the same problem appeared - so I think that Linux enables something that's causing these problems with some PCI sound devices on these chipsets. -- Ondrej Zary - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/