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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1C6B4C7115C for ; Wed, 25 Jun 2025 13:46:05 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [45.14.194.44]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id AC5A8601F4; Wed, 25 Jun 2025 15:45:53 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz AC5A8601F4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1750859163; bh=NK2sMryTrJo0Qz/HXixc4QPlYahEBt1Yd8a2U9UknfY=; h=Date:From:To:Subject:List-Id:List-Archive:List-Help:List-Owner: List-Post:List-Subscribe:List-Unsubscribe:From; b=K5ClIzpF4KKdnqEr1gu/8wuwhpsMOnJoBitvwhog3YSZBBl68higiTByKhHW1Exz8 V7DyLRhN8A/xFssWszJzjYV5nBFxrM6XEXbVJpKhm9E220fJ5H/q1GUJhpzTiO/kAJ 59hZBgQ6plDh6JiVbbwdpqwSoUD0WFAAfmAlFhV0= Received: by alsa1.perex.cz (Postfix, from userid 50401) id AD404F805BF; Wed, 25 Jun 2025 15:45:25 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 9D964F805C8; Wed, 25 Jun 2025 15:45:25 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 6D427F804FB; Wed, 25 Jun 2025 15:45:22 +0200 (CEST) Received: from mail.vandervlis.nl (mail.vandervlis.nl [91.198.178.50]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 6B394F8026D for ; Wed, 25 Jun 2025 15:45:18 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 6B394F8026D Received: from localhost (localhost [127.0.0.1]) by mail.vandervlis.nl (Postfix) with ESMTP id 8680F1FD72 for ; Wed, 25 Jun 2025 15:45:18 +0200 (CEST) Received: from mail.vandervlis.nl ([127.0.0.1]) by localhost (mail.vandervlis.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mq8M7CIRHbax for ; Wed, 25 Jun 2025 15:45:18 +0200 (CEST) Received: from sioban.squirrel.nl (86-86-198-172.fixed.kpn.net [86.86.198.172]) (Authenticated sender: johanvromans) by mail.vandervlis.nl (Postfix) with ESMTPSA id 69E281F84C for ; Wed, 25 Jun 2025 15:45:18 +0200 (CEST) Received: from phoenix.squirrel.nl (phoenix.squirrel.nl [192.168.1.251]) by sioban.squirrel.nl (Postfix) with ESMTP id F0D949100AAF; Wed, 25 Jun 2025 15:45:17 +0200 (CEST) Date: Wed, 25 Jun 2025 15:45:17 +0200 From: Johan Vromans To: alsa-devel@alsa-project.org Subject: Zoom R24 USB multichannel audio interface no longer recognized Message-ID: <20250625154517.1e95463a@phoenix.squirrel.nl> Organization: Squirrel Consultancy X-Mailer: Claws Mail 4.3.1 (GTK 3.24.49; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-ID-Hash: PBSDS42FJ2ZU2TYKX36GLNWTPSG5CNPH X-Message-ID-Hash: PBSDS42FJ2ZU2TYKX36GLNWTPSG5CNPH X-MailFrom: jvromans@squirrel.nl X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: I'm new here so my apologies if I'm asking questions at the wrong place. Someone told me this could be a regression in ALSA. I'm running Fedora and have used a Zoom R24 as a USB multichannel audio interface (8-in/2-out) for many years. Recently I upgraded to Fedora 42 and now the device is presented as dumb 2-in/2-out USB audio interface. "pavucontrol" does not present multi-channel profiles for the device. The command "alsamixer -c 1" (to select the R24) gives "This device does not have any controls.". "qjackctl" also shows 2-in/2-out channels. I use the device with "ardour" for multi-channel recording but that no longer works, only 2-in/2-out channels are available. How can I get the R24 fully functional again? Thanks,