apport information ** Attachment added: "Lspci-vt.txt" https://bugs.launchpad.net/bugs/2126883/+attachment/5915778/+files/Lspci-vt.txt
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in 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 Status in linux package in Ubuntu: New Bug description: 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. --- 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. --- ProblemType: Bug ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/seq: sasha 2963 F.... pipewire /dev/snd/controlC0: sasha 2966 F.... wireplumber /dev/snd/controlC1: sasha 2966 F.... wireplumber 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-6.8.0-38-generic root=UUID=381885ee-cacf-4e44-935b-f7ef4f734401 ro quiet splash ProcVersionSignature: Ubuntu 6.8.0-38.38-generic 6.8.8 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-6.8.0-38-generic N/A linux-backports-modules-6.8.0-38-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.17 Tags: wilma Uname: Linux 6.8.0-38-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. 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