From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 420F2C43387 for ; Thu, 3 Jan 2019 13:23:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15BC52070C for ; Thu, 3 Jan 2019 13:23:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731658AbfACNX4 (ORCPT ); Thu, 3 Jan 2019 08:23:56 -0500 Received: from mx2.suse.de ([195.135.220.15]:46188 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731018AbfACNXz (ORCPT ); Thu, 3 Jan 2019 08:23:55 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 0F2C8AD43; Thu, 3 Jan 2019 13:23:54 +0000 (UTC) Date: Thu, 03 Jan 2019 14:23:53 +0100 Message-ID: From: Takashi Iwai To: Con Kolivas Cc: linux-kernel , alsa-devel@alsa-project.org Subject: Re: ALSA:usb audio Higher sample rates on usb audio no longer working. In-Reply-To: References: User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/26 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 03 Jan 2019 12:43:54 +0100, Con Kolivas wrote: > > Upon switching from 4.19.0 to 4.20.0, pulseaudio started complaining > that sinks that previously worked are no longer supported. > > On 4.19.0 trying 24 bit 88200, 176400, and 192000 I get the following > output from pulse. > resampler.c: Forcing resampler 'copy', because of fixed, identical > sample rates.sink-input.c: Created input 15 "Playback Stream" on > alsa_output.usb-DSPeaker_Anti-Mode_X4-00.iec958-stereo with sample > spec float32le 2ch 176400Hz and channel map front-left,front-right > > Switching to 4.20 gives me: > alsa-sink.c: Sink does not support sample rate of 176400 Hz > and > alsa-sink.c: Sink does not support sample rate of 88200 Hz > and > alsa-sink.c: Sink does not support sample rate of 192000 Hz > > Sample rates of 44100, 48000, and 96000 work fine, but 88200, 176400, > and 192000 no longer work > > Switching back to 4.19 immediately fixes the issue. > > > I tried looking through the alsa changelogs but there were too many to > give an obvious culprit, and haven't had time to do a git bisect. If > there's an obvious choice patch to back out I'd be grateful for the > heads up. Hm, through a quick glance, there hasn't been any relevant changes in USB-audio part (sound/usb/*). Also, the changes in sound/core/* are irrelevant with your problem. So I have no idea what went wrong. The bisection, or at least, narrowing down the commits would be helpful. thanks, Takashi