No sound from microphone, and after adjusting alsa-base.conf, no input devices are detected

[c0mpsc1art1st]

I did a fresh install of Mantic Minotaur on my MSI Prestige 14 Evo laptop from 2020.

In Ubuntu Settings, everything was working under Sound except for my internal microphone. No sound was coming from it. Although, the input device is detected.

I checked alsamixer, under the correct sound card, and microphone was muted, so I un-muted it. No change under Ubuntu Sound Settings.

I then made an edit to the following line on grub:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash snd_hda_intel.dmic_detect=1"

Then, I updated grub, and rebooted. Still, no sound from microphone. Speakers were working still.

Added:
alias snd-card-0 snd-hda-intel
options snd-hda-intel model=auto
to alsa-base.conf, then rebooted, and now no input devices are being detected in Ubuntu Sound Settings.

Ran:
systemctl --user --now enable wireplumber.service
systemctl --user --now start wireplumber.service

and nothing changed.

Forgot to undo the changes made to grub, so I changed:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash snd_hda_intel.dmic_detect=1"

to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Updated grub, and rebooted the system.

Still, no input devices were detected in Sound Settings.

Experimenting, I removed the two lines appended to alsa-base.conf, and ran sudo alsa force-reload. Then rebooted the system.

After I rebooted, the microphone was detected in Sound Settings, but still no sound was coming from it. I couldn't hear myself talking into it. Speakers were still working fine.

Out of curiosity, I again appended the two lines above to alsa-base.conf, ran sudo alsa force-reload, and rebooted. After rebooting, no input device was detected in Sound Settings.

Again, I removed the last two lines I appended to alsa-base.conf, and ran sudo alsa force-reload, and rebooted. But after I rebooted, there was still no input device detected in Sound Settings. But the speakers are still working.

This is where I am currently. Someone mentioned to me that this is a bug.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: alsa-firmware-loaders (not installed)
Uname: Linux 6.7.0-060700-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 8 15:48:48 2024
InstallationDate: Installed on 2024-01-08 (0 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: alsa-tools
UpgradeStatus: No upgrade log present (probably fresh install)