I just tried this now on a freshly installed Ubuntu 20.04 with kernel 5.8.0-41-generic and it works great in both Gnome and in Chromium. Happy to mark this resolved.
-- 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/1868330 Title: Lenovo ThinkPad-X1-Carbon-7th Gen microphone doesnt work Status in alsa-driver package in Ubuntu: Confirmed Bug description: On Focal Fossa the microphone is recognised but doesn't work. Chromium shows the microphone as present but off, and if it is renabled it goes off again after a couple of seconds. Chromium logs this error: [ 2149.047888] sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0 [ 2149.177469] sof-audio-pci 0000:00:1f.3: firmware boot complete [ 2160.561825] sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0 [ 2160.656755] sof-audio-pci 0000:00:1f.3: firmware boot complete [ 2414.391790] sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0 [ 2414.487256] sof-audio-pci 0000:00:1f.3: firmware boot complete Mar 20 23:09:24 user-ThinkPad-X1-Carbon-7th chromium_chromium.desktop[9531]: [9531:9531:0320/230924.861503:ERROR:pulse_util.cc(300)] pa_operation is nullptr. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24 Uname: Linux 5.4.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu20 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: user 1687 F.... pulseaudio /dev/snd/pcmC0D0p: user 1687 F...m pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Mar 20 23:03:01 2020 InstallationDate: Installed on 2020-03-11 (9 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200309) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaRecordingTest: ALSA recording test through plughw:sofhdadsp failed Symptom_Card: sof-hda-dsp - sof-hda-dsp Symptom_Jack: Black Mic, Right Symptom_Type: None of the above Title: [20R1000RUS, Realtek ALC285, Black Mic, Right] Recording problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/15/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2QET19W (1.13 ) dmi.board.asset.tag: Not Available dmi.board.name: 20R1000RUS 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:bvrN2QET19W(1.13):bd01/15/2020:svnLENOVO:pn20R1000RUS:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20R1000RUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 7th dmi.product.name: 20R1000RUS dmi.product.sku: LENOVO_MT_20R1_BU_Think_FM_ThinkPad X1 Carbon 7th dmi.product.version: ThinkPad X1 Carbon 7th dmi.sys.vendor: LENOVO mtime.conffile..etc.modprobe.d.alsa-base.conf: 2020-03-12T15:40:19.308712 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1868330/+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
