Hi, I wanted to give a bit of feedback after a few days using the laptop with kernel 43 and the experimental libasound packages from Hui's ppa.
As far as I can tell, the microphone works flawlessly. Sound output to speakers and HDMI works too. With one notable drawback : the internal speaker volume, even when maxed out in alsamixer and gnome settings is very weak, much weaker than when using the snd_hda driver. I think this is related to https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1859754/comments/28 and one should be aware of it before switching to sof. Plugging a BT headset correctly switches output to the headset and joining a google meet visio conference in firefox switches the microphone too. As reported in https://bugs.launchpad.net/ubuntu/+source/alsa- lib/+bug/1859754/comments/86 the chrome snap seems to do something different from firefox ending up in crashing the BT headset when joining a google meet visio. installed packages ii libasound2:amd64 1.1.9-0ubuntu1.2++++testucm amd64 shared library for ALSA applications ii libasound2-data 1.1.9-0ubuntu1.2++++testucm all Configuration files and profiles for ALSA drivers ii libasound2-plugins:amd64 1.1.9-0ubuntu1 amd64 ALSA library additional plugins ii linux-firmware 1.183.5 all Firmware for Linux kernel drivers ii linux-image-5.3.0-43-generic 5.3.0-43.36 amd64 Signed kernel image generic ii linux-modules-5.3.0-43-generic 5.3.0-43.36 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-modules-extra-5.3.0-43-generic 5.3.0-43.36 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP -- 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/1845678 Title: Lenovo ThinkPad X1 Carbon 7th Generation built-in microphone doesn't work Status in linux package in Ubuntu: Confirmed Bug description: The built-in microphone in my Lenovo ThinkPad X1 Carbon 7th Generation doesn't work. A microphone on a headset plugged into the 3.5mm jack works fine. This is probably relevant: https://bugzilla.kernel.org/show_bug.cgi?id=201251 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-12-generic 5.3.0-12.13 ProcVersionSignature: Ubuntu 5.3.0-12.13-generic 5.3.0 Uname: Linux 5.3.0-12-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jik 3746 F.... pulseaudio /dev/snd/pcmC0D0p: jik 3746 F...m pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Sep 27 11:13:25 2019 InstallationDate: Installed on 2019-09-12 (14 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: LENOVO 20QD001VUS ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-12-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.3.0-12-generic N/A linux-backports-modules-5.3.0-12-generic N/A linux-firmware 1.182 SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-09-20 (7 days ago) dmi.bios.date: 07/04/2019 dmi.bios.vendor: LENOVO dmi.bios.version: N2HET30W (1.13 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QD001VUS dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2HET30W(1.13):bd07/04/2019:svnLENOVO:pn20QD001VUS:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20QD001VUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 7th dmi.product.name: 20QD001VUS dmi.product.sku: LENOVO_MT_20QD_BU_Think_FM_ThinkPad X1 Carbon 7th dmi.product.version: ThinkPad X1 Carbon 7th dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1845678/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
