From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 783901A317D for ; Wed, 21 May 2025 06:23:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747808630; cv=none; b=egI9flSWH0IRF1t/TqZezt9WyokcbzjW/KaM0hIy2Roiz0Cf0Y8yQA4rTisLUppNOvu21rliOkdAAm2e21TKJ1DUOfsTQrzAZsaGyrbGnw5yLK4fB9cnpdEVyF3Mw9yW6a1r+6AbPmSnixvvwd+asLEilwTlyNsQUoWRjaoKkBE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747808630; c=relaxed/simple; bh=nfE5Xc2flz7UA5TjPHShzZZPFp7oxnIiDnaeNcGV0dg=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=jrOJiEvNA2WeXqtpVG52ucAJmPJJpAeHgMXifNeHPLirtgnElSKfaWiiUaldgEpyIScAidDzNdecZzJG5S2Hj9Sr1UK7e/ujf+TLdvw6huZM+H/jvJayrTmlTx4doKOAQ9n9xrY163PoN7XFt28iuOjhtWO/HU7LJyporixb5KE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Eb2Hb2A7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Eb2Hb2A7" Received: by smtp.kernel.org (Postfix) with ESMTPS id D736CC4CEE4 for ; Wed, 21 May 2025 06:23:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747808629; bh=nfE5Xc2flz7UA5TjPHShzZZPFp7oxnIiDnaeNcGV0dg=; h=From:To:Subject:Date:From; b=Eb2Hb2A7xXOI4bJZzj8sOo31TAlVZPe5Pg3Y+jGj+/1nQF8LpyPKX4ZGyHx/Ri5hI jYeoQQFcJ3khOngwOm0MuAgsV+cK2HqZO95lAKRzYqRstNohIapzhFPEvuax8Dvsty v59dKwKmRDUHsvlSQXQGggFJ7A21BcNawm8Fyn4qtoWlxZBLKt/veOxCsJtCqBlTB2 7DUVegh8SZRMM5VdKqpG3ZaeI7PWUbR0UQyaUKbrBMk4bnpPAMiYIuoUzKFNSjdDu8 WztdHv7NGJQiwvtPOq+0B/S1g6Q/IVPNDHzB7yliR5w3qBUxoxsSruztfDMFKSMX5v hjj69SPuyBotg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id C35B3C433E1; Wed, 21 May 2025 06:23:49 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: =?UTF-8?B?W0J1ZyAyMjAxNDNdIE5ldzogRExaIENyZWF0b3IgWFMgKFVTQiBB?= =?UTF-8?B?dWRpbykgbm90IHdvcmtpbmcg4oCTIGFjY2VwdHMgaHcgcGFyYW1zIGJ1dCBw?= =?UTF-8?B?bGF5YmFjayBmYWlscyAod3JpdGUgZXJyb3IgLTc3KQ==?= Date: Wed, 21 May 2025 06:23:49 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: maps@knutsson.it X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D220143 Bug ID: 220143 Summary: DLZ Creator XS (USB Audio) not working =E2=80=93 accept= s hw params but playback fails (write error -77) Product: Drivers Version: 2.5 Kernel Version: 6.14.0-15-generic Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@kernel-bugs.kernel.org Reporter: maps@knutsson.it Regression: No The Mackie / LOUD Audio DLZ Creator XS USB audio interface is detected correctly by ALSA, and presents itself with: Vendor ID: 0a73 Product ID: 003a USB interface: High-speed ALSA detection: card 2 (via aplay -l) The device only accepts: Format: S32_LE Sample rate: 48000 Hz Channel count: 4 When using: speaker-test -D hw:2,0 -c 4 -F S32_LE -r 48000 =E2=80=A6the device accepts snd_pcm_hw_params() successfully but fails at p= layback: Write error: -77, File descriptor in bad state xrun_recovery failed: -77 The same happens with: aplay -D hw:2,0 The interface disconnects and reconnects after such playback attempts in ma= ny cases. No audio is heard. All simpler formats (e.g., 1 or 2 channels, or 16-bit) are rejected with Invalid argument. Reproduce Steps: Plug in DLZ Creator XS to USB 2.0 or 3.0 port Confirm device appears via aplay -l Run: speaker-test -D hw:2,0 -c 4 -F S32_LE -r 48000 Observe that device accepts format, then playback fails lsusb -v output: Bus 003 Device 013: ID 0a73:003a Mackie Designs DLZ Creator XS iManufacturer 1 LOUD Audio, LLC iProduct 2 DLZ Creator XS iSerial 3 no serial number Tested with Ubuntu 24.04 (kernel 6.5) Ubuntu 25.05 (kernel 6.14) Same behavior across systems Device works flawlessly under Windows with official driver Comment It appears the device requires a very specific channel layout and potential= ly vendor-specific initialization or control messaging before playback is possible. If this device is non-compliant with UAC2 spec, perhaps it should= be explicitly blacklisted or set up with a vendor-specific quirk? I would be happy to run more usbmon/alsa-info traces if needed. I apologize beforehand, as I have not filled out a bug report before. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=