Comment 0 for bug 1874698

On Ubuntu 20.04, by default, sof-audio-pci is used. I only have "Dummy output" in pavucontrol. To fix this, I modified /etc/modprobe.d/alsa-base.conf and added "options snd-intel-dspcfg dsp_driver=1" so that now "snd-hda-intel" is loaded instead of sof-audio-pci. While the speakers are working fine, I do not have the internal microphone working (suspect a digital array).

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: wittawat 2063 F.... pulseaudio
 /dev/snd/controlC0: wittawat 2063 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 24 12:42:32 2020
InstallationDate: Installed on 2020-04-23 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
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: [OMEN by HP Laptop 15-dh0xxx, Realtek ALC285, Black Mic, Left] Recording problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/09/2019
dmi.bios.vendor: AMI
dmi.bios.version: F.22
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 8600
dmi.board.vendor: HP
dmi.board.version: 44.41
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAMI:bvrF.22:bd12/09/2019:svnHP:pnOMENbyHPLaptop15-dh0xxx:pvr:rvnHP:rn8600:rvr44.41:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP OMEN
dmi.product.name: OMEN by HP Laptop 15-dh0xxx
dmi.product.sku: 7JX54EA#ABD
dmi.sys.vendor: HP
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2020-04-24T12:32:21.613996