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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 6E3ECC433FE for ; Sat, 12 Dec 2020 16:40:19 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E5F7F22262 for ; Sat, 12 Dec 2020 16:40:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E5F7F22262 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=alsa-project.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 7742C16C9; Sat, 12 Dec 2020 17:39:25 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 7742C16C9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1607791215; bh=eV3u+cmS7HsaBA804qvnkj9ugdxxWTbR4yxeHyqViRc=; h=From:To:In-Reply-To:References:Subject:Date:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=mxXWZHTxcv77IazjPS7UJsg6B9Qr6emhEdmb+cUXHdBISTdJ4VQDViNHElK5msIWP R2CvG3vo2Ib7+prKWhoyT43tG80u4lqtFBEOW+3kHdG/PyXB9ejVjr1MzoGKBZqCcF 8jjKRWyhabNQGGJ+WeQnww/kxGJVwwkkTIeo1BQs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id D38D1F80164; Sat, 12 Dec 2020 17:39:24 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id D6599F80129; Sat, 12 Dec 2020 17:39:22 +0100 (CET) Received: from webhooks-bot.alsa-project.org (gate.perex.cz [77.48.224.242]) by alsa1.perex.cz (Postfix) with ESMTP id 7A6C3F80129 for ; Sat, 12 Dec 2020 17:39:14 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 7A6C3F80129 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit From: GitHub issues - opened To: alsa-devel@alsa-project.org In-Reply-To: <1607791154221813917-webhooks-bot@alsa-project.org> References: <1607791154221813917-webhooks-bot@alsa-project.org> Subject: Bug in the ALSA driver 'snd_usb_audio' Message-Id: <20201212163922.D6599F80129@alsa1.perex.cz> Date: Sat, 12 Dec 2020 17:39:22 +0100 (CET) X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" alsa-project/alsa-lib issue #105 was opened from rombru: Hello, I'm not an expert in linux systems. I will try to give a maximum of information. I've bought Bowers & Wilkins PX7 headphones. They doesn't work using USB on Ubuntu. Using Ubuntu and bluetooth, or audio jack, the headphones work well. Using Windows 10 and USB, the headphones work well. I d'like too use them with USB on Ubuntu because that recharge them in parallel. Problems while the headphons are connected : On Chrome : The videos are played too fast and there's no sound (Youtube & Twitch). On Firefox : The videos are played too fast and there's a crackling sound (Youtube & Twitch). On VLC : No sound I've tried with Ubuntu 20.04 & 18.04. They are set as default audio device I've played with PulseAudio and alsamixer (reinstall, mute/unmute, ...) The headphones are set as fallback in PulseAudio. Trying to find the issue, i've make some test found on Google : I've added pcie_aspm=off in GRUB_CMDLINE_LINUX_DEFAULT Setting devices as default in /etc/asound.conf --- The ALSA part I think the problem come from ALSA, i've found the errors : `Failed to load module "module-alsa-card` followed few lines later by `Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers.` Output of `journalctl --user -u pulseaudio` is [here](https://gist.githubusercontent.com/rombru/eb4ca14168494e95c62a961f92e91a90/raw/52c93f01b9c617f823308183d32d07f8e9033bc1/journalctl.txt) Output of `pulseaudio -vvvvv` is [here](https://gist.githubusercontent.com/rombru/eb4ca14168494e95c62a961f92e91a90/raw/52c93f01b9c617f823308183d32d07f8e9033bc1/pulseaudio.txt) Output of `pacmd ls` is [here](https://gist.githubusercontent.com/rombru/eb4ca14168494e95c62a961f92e91a90/raw/52c93f01b9c617f823308183d32d07f8e9033bc1/pacmd.txt) Please, tell me if you need something more to analyse the problem. Issue URL : https://github.com/alsa-project/alsa-lib/issues/105 Repository URL: https://github.com/alsa-project/alsa-lib