Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755804Ab0DNOgk (ORCPT ); Wed, 14 Apr 2010 10:36:40 -0400 Received: from mailservice.tudelft.nl ([130.161.131.5]:51687 "EHLO mailservice.tudelft.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755757Ab0DNOgj (ORCPT ); Wed, 14 Apr 2010 10:36:39 -0400 X-Spam-Flag: NO X-Spam-Score: -24.389 Message-ID: <4BC5D2F4.4010500@tremplin-utc.net> Date: Wed, 14 Apr 2010 16:36:36 +0200 From: =?UTF-8?B?w4lyaWMgUGllbA==?= User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100331 Mandriva/3.0.4-1mdv2010.1 (2010.1) Thunderbird/3.0.4 MIME-Version: 1.0 To: Takashi Iwai CC: Jaroslav Kysela , "Rafael J. Wysocki" , Linux Kernel Mailing List , alsa-devel@alsa-project.org, Frank Griffin Subject: Re: [REGRESSION bisected] Sound goes too fast due to commit 7b3a177b0 References: <4BC4E812.6050602@tremplin-utc.net> <4BC5A566.8060106@tremplin-utc.net> <4BC5AD08.8040606@tremplin-utc.net> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1172 Lines: 31 On 14/04/10 15:39, Takashi Iwai wrote: : > > bdl_pos_adj is really a workaround for devices that report wrong DMA > position (or at the wrong timing). I guess position_fix=1 may fix > better. > > Although the driver already has a dynamic switching of position_fix > method, it checks only the very first read. If it gives a (more or > less) sane value, it prefers the position-buffer method (corresponding > to position_fix=2) rather than reading LPIB register > (position_fix=1). > > It seems, however, that more devices work sanely with LPIB reg > nowdays. This wasn't the case formerly. So, it might be better to > use position_fix=1 as default for modern systems... Frank, Could you check that for you too adding "position_fix=1" fixes the problem? To do so, edit /etc/modprobe.conf and add this line at end: options snd-hda-intel position_fix=1 You need to reboot for this to be taken into account. Cheers, Eric -- 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/