apport information ** Tags added: apport-collected wilma
** Description changed: After updating Linux Mint 22 from kernel 6.8.0-38-generic to 6.8.0-85-generic, the internal microphone stopped working. The audio device is detected (HD-Audio Generic, codec ALC256), and both Capture and Internal Mic controls are visible and unmuted in amixer. However, no sound is recorded in arecord or seen in PulseAudio/PipeWire input levels. Works on 6.8.0-38-generic Broken on 6.8.0-85-generic I've attached ALSA diagnostic files generated with the `alsa-info` tool. **How they were collected:** - `alsa-info-working.txt` → captured while running kernel **6.8.0-38-generic** (internal microphone working) - `alsa-info-broken.txt` → captured while running kernel **6.8.0-85-generic** (internal microphone not working) Both files were generated using: sudo alsa-info --no-upload --output ~/alsa-info-<state>.txt Since Launchpad doesn't let me upload two files, I merged them into one. **Hardware details:** System: ASUS VivoBook X515DAP (M515DA) Codec: Realtek ALC256 Audio driver: snd_hda_intel / snd_hda_codec_realtek **Summary of the issue:** After updating from kernel 6.8.0-38 to 6.8.0-85, the internal microphone stopped recording audio. The device appears in `arecord --list-devices` and in PipeWire, but no signal is captured. All mixer controls (`Capture`, `Internal Mic`, `Mic Boost`) are enabled and unmuted. Booting back into 6.8.0-38 restores full microphone functionality. **Model quirks tested (no effect):** model=asus-zenbook model=asus-mic model=alc256-asus - Please compare the two ALSA info logs — likely a pin configuration or - initialization change in `snd_hda_codec_realtek` for ALC256 between - these kernels. + Please compare the two ALSA info logs — likely a pin configuration or initialization change in `snd_hda_codec_realtek` for ALC256 between these kernels. + --- + ProblemType: Bug + ApportVersion: 2.28.1-0ubuntu3.8 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: sasha 2955 F.... wireplumber + /dev/snd/controlC0: sasha 2955 F.... wireplumber + /dev/snd/seq: sasha 2952 F.... pipewire + CRDA: N/A + CasperMD5CheckMismatches: ./boot/grub/efi.img + CasperMD5CheckResult: fail + CurrentDesktop: X-Cinnamon + DistroRelease: Linux Mint 22 + InstallationDate: Installed on 2025-07-18 (80 days ago) + InstallationMedia: Linux Mint 22 "Wilma" - Release amd64 20240721 + Lsusb: + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub + Bus 001 Device 003: ID 13d3:3557 IMC Networks Bluetooth Radio + Bus 001 Device 004: ID 322e:2103 Sonix Technology Co., Ltd. USB2.0 HD UVC WebCam + Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub + MachineType: ASUSTeK COMPUTER INC. VivoBook_ASUSLaptop X515DAP_M515DA + NonfreeKernelModules: zfs + Package: linux (not installed) + ProcFB: 0 amdgpudrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-85-generic root=UUID=381885ee-cacf-4e44-935b-f7ef4f734401 ro quiet splash + ProcVersionSignature: Ubuntu 6.8.0-85.85-generic 6.8.12 + PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-6.8.0-85-generic N/A + linux-backports-modules-6.8.0-85-generic N/A + linux-firmware 20240318.git3b128b60-0ubuntu2.17 + Tags: wilma + Uname: Linux 6.8.0-85-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: N/A + _MarkForUpload: True + dmi.bios.date: 01/06/2023 + dmi.bios.release: 5.14 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: X515DAP.311 + dmi.board.asset.tag: ATN12345678901234567 + dmi.board.name: X515DAP + 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:bvnAmericanMegatrendsInc.:bvrX515DAP.311:bd01/06/2023:br5.14:svnASUSTeKCOMPUTERINC.:pnVivoBook_ASUSLaptopX515DAP_M515DA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX515DAP:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku: + dmi.product.family: ASUSLaptop + dmi.product.name: VivoBook_ASUSLaptop X515DAP_M515DA + dmi.product.version: 1.0 + dmi.sys.vendor: ASUSTeK COMPUTER INC. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/2126883/+attachment/5915774/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2126883 Title: Internal microphone stopped working on ASUS VivoBook X515DAP (ALC256) after update to kernel 6.8.0-85 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2126883/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
