I have important update to you. I was tired to wait and discovered the problem deeper by myself. It turned out, that it was needed to add my notebook modelname to linux kernel repo. Moreower, it turned out, that there are alredy commit for it https://github.com/torvalds/linux/commit/32fc4168fa56f6301d858c778a3d712774e9657e So the only thing you need to do is ship newer kernel version and it will work -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2139264 Title: Internal microphone not detected on ASUS ExpertBook BM1503CDA (AMD Rembrandt) Status in linux package in Ubuntu: New Status in linux source package in Noble: New Bug description: I am reporting an issue where the internal digital microphone (DMIC) is not recognized on my ASUS ExpertBook BM1503CDA. Hardware Environment: - Laptop: ASUS ExpertBook BM1503CDA - CPU: AMD Rembrandt (Ryzen 7000 series) - Audio: AMD ACP 6x Audio Coprocessor [1022:15e2] (rev 60) - Codec: Realtek ALC256 - Kernel: 6.14.0-37-generic (Ubuntu 24.04) Problem Description: The system only detects the "Headset Mic" (0x19), but the internal digital microphone is completely missing from the available input devices. I have already tried the following without success: 1. Installing 'firmware-sof-signed' and 'alsa-ucm-conf'. 2. Setting 'options snd-intel-dspcfg dsp_driver=3'. 3. The 'lsmod' output confirms that 'snd_sof_amd_rembrandt' is loaded, but the microphone remains unavailable. It seems my specific Subsystem ID (0x00aa0100) is missing a quirk or proper PDM initialization in the current kernel version. ALSA Information Link: Your ALSA information is located at http://alsa-project.org/db/?f=7020c96e27dc0c4bd3f152402becd235267bb12d --- ProblemType: Bug ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: andrej 2330 F.... wireplumber /dev/snd/controlC0: andrej 2330 F.... wireplumber /dev/snd/seq: andrej 2323 F.... pipewire CRDA: N/A CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 24.04 InstallationDate: Installed on 2025-11-03 (86 days ago) InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64 (20250805.1) MachineType: ASUSTeK COMPUTER INC. ASUS EXPERTBOOK BM1503CDA Package: linux (not installed) ProcEnviron: LANG=cs_CZ.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-37-generic root=UUID=c440e49f-5260-4f6d-943e-6a58c876cc2b ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 6.14.0-37.37~24.04.1-generic 6.14.11 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-6.14.0-37-generic N/A linux-backports-modules-6.14.0-37-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.23 Tags: noble Uname: Linux 6.14.0-37-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: True dmi.bios.date: 04/17/2025 dmi.bios.release: 5.24 dmi.bios.vendor: ASUSTeK COMPUTER INC. (Licensed by AMI, LLC.) dmi.bios.version: BM1503CDA.317 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: BM1503CDA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnASUSTeKCOMPUTERINC.(LicensedbyAMI,LLC.):bvrBM1503CDA.317:bd04/17/2025:br5.24:svnASUSTeKCOMPUTERINC.:pnASUSEXPERTBOOKBM1503CDA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnBM1503CDA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku: dmi.product.family: ASUS EXPERTBOOK dmi.product.name: ASUS EXPERTBOOK BM1503CDA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2139264/+subscriptions
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