Looks like the same issue I'm having on Thinkpad X1 Carbon 7th Gen running Ubuntu 19.04.
Debug output here: http://alsa-project.org/db/?f=5c09dfb7b0fc0ff5ad32c0576893316f5613d3a1 As well as the Mic not being detected, and therefore not available for use in any applications, there is an issue with the master audio volume being either full-on or muted. individual mixer controls still work, but the main volume control does nothing other than mute the audio. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1837821 Title: [HP Spectre x360 Convertible 15-df0xxx, Realtek ALC285, Black Mic, Left] Recording problem Status in alsa-driver package in Ubuntu: Confirmed Bug description: Running Ubuntu 18.04.2 LTS. The built in microphone is not displayed and not available to select. The webcam, touchscreen, and speakers all work fine. Plugging in a headset with a microphone does allow audio to be heard through the external microphone. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.18.0-25.26~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-25-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: carwyn 2521 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Jul 24 20:57:51 2019 InstallationDate: Installed on 2019-07-22 (3 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) PackageArchitecture: all ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Black Mic, Left Symptom_Type: None of the above Title: [HP Spectre x360 Convertible 15-df0xxx, Realtek ALC285, Black Mic, Left] Recording problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/22/2019 dmi.bios.vendor: AMI dmi.bios.version: F.29 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 8518 dmi.board.vendor: HP dmi.board.version: 10.47 dmi.chassis.type: 31 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAMI:bvrF.29:bd04/22/2019:svnHP:pnHPSpectrex360Convertible15-df0xxx:pvr:rvnHP:rn8518:rvr10.47:cvnHP:ct31:cvrChassisVersion: dmi.product.family: 103C_5335KV HP Spectre dmi.product.name: HP Spectre x360 Convertible 15-df0xxx dmi.product.sku: 6JY95UA#ABA dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1837821/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
