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=-8.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,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 6C472C4361B for ; Tue, 8 Dec 2020 21:31:02 +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 A0FFA23B1F for ; Tue, 8 Dec 2020 21:31:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A0FFA23B1F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de 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 D620616E4; Tue, 8 Dec 2020 22:30:09 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D620616E4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1607463060; bh=ME8fxXP4kt+w45Bn11uWaQjvGv9sdFPE7lq7eFMSkqY=; h=Date:From:To:Subject:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=bqxxFDWvcVWUE6gYMUMjL0oboWw6kgLjb9iBHgwWiXxC+W4eicGAcVLpuminh/VTk ujrb+PNut5qggH3arr8+nN18LYyavB8ebp8bkRD7n1mDhlmi0pqOxv5BxBbwiNL+pL J0v4dBfaACblTq3psHbBKRkesZSMY01VyjO+nez8= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 5A95BF80130; Tue, 8 Dec 2020 22:30:09 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9A691F80164; Tue, 8 Dec 2020 22:30:07 +0100 (CET) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E10BAF80130 for ; Tue, 8 Dec 2020 22:29:59 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E10BAF80130 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 9A762AC55; Tue, 8 Dec 2020 21:29:59 +0000 (UTC) Date: Tue, 08 Dec 2020 22:29:59 +0100 Message-ID: From: Takashi Iwai To: meschi@posteo.de Subject: Re: Steinberg UR22 Crackling and Clicks In-Reply-To: <987d1956f52ba49dc3b587c33e08bfb2@posteo.de> References: <61da73624ff3855867b8e65936fc2e1c@posteo.de> <987d1956f52ba49dc3b587c33e08bfb2@posteo.de> 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/25.3 (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 Cc: alsa-devel@alsa-project.org 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" On Tue, 08 Dec 2020 21:53:14 +0100, meschi@posteo.de wrote: > > > > Am 08.12.2020 21:23 schrieb Takashi Iwai: > > On Tue, 08 Dec 2020 20:41:33 +0100, > > meschi@posteo.de wrote: > >> > >> > >> > >> Am 08.12.2020 15:57 schrieb Takashi Iwai: > >> > On Tue, 08 Dec 2020 15:50:28 +0100, > >> > meschi@posteo.de wrote: > >> >> > >> >> > It's likely the issues with the implicit feedback. > >> >> > > >> >> > The latest development tree (either linux-next tree or > >> >> > topic/usb-audio-refactoring branch of my sound.git tree) contains the > >> >> > improvements of the implicit feedback mode. > >> >> > > >> >> > > >> >> > Takashi > >> When I try to play a file now this happens: > >> $ aplay -D plughw:CARD=UR22 ./file.wav > >> Playing WAVE './file.wav' : Signed 16 bit Little Endian, Rate 44100 > >> Hz, Stereo > >> aplay: set_params:1407: Unable to install hw params: > > > > It's a known side-effect of the implicit feedback mode, and the latest > > patchset I mentioned earlier addresses the issue. > > > > > > Takashi > > I'm already running the kernel built from the linux-next tree... > I built next-20201208 from > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > Is there another patch set that I'm missing? Hm, strange. Please check the contents of /proc/asound/card*/stream* file. With the latest patches and the implicit feedback mode, you should see the lines like "Sync Endpoint: 0x...." and "Implicit Feedback Mode: yes". Takashi