Alienware Area-51m / Realtek ALC215 multi-function headphone jacks configured incorrectly

[Mark Weaver]

The built in laptop speakers / mic work ok
There are two 3.5mm jack ports which end up configured one as a headphone socket and one as a microphone, whereas in Windows they are multi-function ports that support headsets.

Adding `options snd-hda-intel index=0 model=dell-headset-multi` to /etc/modprobe.d/alsa-base.conf makes the port normally configured as headphones work (inserting anything shows a screen asking to know what was inserted -- headphones or headset) but the port normally configured as a microphone stays that way. I have done a bit of poking about but couldn't figure out how to make the pin configs the same (most of the documentation for compiling ALSA seems out of date).

I ran RtHDDump on Windows and attached the output from that in case it's useful.

Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17
Uname: Linux 5.11.0-18-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mark 7732 F.... pulseaudio
 /dev/snd/pcmC0D0c: mark 7732 F...m pulseaudio
 /dev/snd/pcmC0D0p: mark 7732 F...m pulseaudio
 /dev/snd/controlC1: mark 7732 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Jun 13 20:23:27 2021
InstallationDate: Installed on 2021-05-23 (21 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
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: [Alienware Area-51m, Realtek ALC215, Black Mic, Left] Recording problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 3/21/2019
dmi.bios.release: 1.3
dmi.bios.vendor: Alienware
dmi.bios.version: 1.3.2
dmi.board.name: Alienware Area-51m
dmi.board.vendor: Alienware
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Alienware
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnAlienware:bvr1.3.2:bd3/21/2019:br1.3:svnAlienware:pnAlienwareArea-51m:pvr1.3.2:rvnAlienware:rnAlienwareArea-51m:rvrA00:cvnAlienware:ct10:cvrNotSpecified:
dmi.product.family: Alienware
dmi.product.name: Alienware Area-51m
dmi.product.sku: 08C4
dmi.product.version: 1.3.2
dmi.sys.vendor: Alienware
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2021-06-13T16:28:28.400989