From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753202Ab2IFGxn (ORCPT ); Thu, 6 Sep 2012 02:53:43 -0400 Received: from ud10.udmedia.de ([194.117.254.50]:47653 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751223Ab2IFGxm (ORCPT ); Thu, 6 Sep 2012 02:53:42 -0400 Date: Thu, 6 Sep 2012 08:53:40 +0200 From: Markus Trippelsdorf To: Takashi Iwai Cc: Daniel Mack , Linus Torvalds , linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, Pierre-Louis Bossart Subject: Re: Message-ID: <20120906065340.GA257@x4> References: <20120906060220.GA252@x4> <504843BA.2040808@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2012.09.06 at 08:48 +0200, Takashi Iwai wrote: > At Thu, 06 Sep 2012 08:33:30 +0200, > Daniel Mack wrote: > > > > On 06.09.2012 08:02, Markus Trippelsdorf wrote: > > > On 2012.09.04 at 16:40 +0200, Takashi Iwai wrote: > > >> ---------------------------------------------------------------- > > >> Sound fixes for 3.6-rc5 > > >> > > >> There are nothing scaring, contains only small fixes for HD-audio and > > >> USB-audio: > > >> - EPSS regression fix and GPIO fix for HD-audio IDT codecs > > >> - A series of USB-audio regression fixes that are found since 3.5 kernel > > >> > > >> ---------------------------------------------------------------- > > >> Daniel Mack (4): > > >> ALSA: snd-usb: Fix URB cancellation at stream start > > >> ALSA: snd-usb: restore delay information > > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > > The commit fbcfbf5f above causes the following lines to be printed > > > whenever I start a new song: > > > > Copied Pierre-Louis Bossart - he wrote the code in 294c4fb8 which this > > patch (fbcfbf5f) brings back now. > > > > > delay: estimated 0, actual 352 > > > delay: estimated 353, actual 705 > > > > > > (44.1 * 8 = 352.8) > > > > > > This happens with an USB-DAC that identifies itself as "C-Media USB > > > Headphone Set". > > > > And you didn't you see these lines with 3.4? > > Maybe the difference of start condition? > > Markus, does the patch below fix anything? Unfortunately no. However reverting the following fixes the problem: commit 245baf983cc39524cce39c24d01b276e6e653c9e Author: Daniel Mack Date: Thu Aug 30 18:52:30 2012 +0200 ALSA: snd-usb: fix calls to next_packet_size -- Markus