Asus C425 - no output on internal build-in microphone

Audio:
Device-1: Intel Sunrise Point-LP HD Audio driver: snd_soc_avs v: kernel bus-ID: 00:1f.3
chip-ID: 8086:9d71 class-ID: 0401
API: ALSA v: k6.6.25-chrultrabook status: kernel-api
Server-1: PipeWire v: 0.3.65 status: active with: 1: pipewire-pulse status: active
2: wireplumber status: active 3: pipewire-alsa type: plugin

System:
Kernel: 6.6.25-chrultrabook arch: x86_64 bits: 64 compiler: gcc v: 12.2.0 Desktop: Cinnamon
v: 6.0.4 tk: GTK v: 3.24.38 wm: muffin vt: 7 dm: LightDM v: 1.26.0 Distro: LMDE 6 Faye
base: Debian 12.1 bookworm

Upon running chrultrabook audio script, the internal microphone did not show up as output, but it did show up as input. Howver, the headphone was working OK.

(I spent over 3 hours building the 6.6.25 kernel myself using your script as the github kernel zip returned error. I am using LMDE 6. Previously, I tried Ubuntu 22.04, but could not get the sound work at all.

Thank you for your advice.

Ubuntu is Officially unsupported.

What does arecord -l show

arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: avsdmic [avs_dmic], device 2: Digital Microphone () []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: avsda7219 [avs_da7219], device 1: Headset (
)
Subdevices: 1/1
Subdevice #0: subdevice #0

=====

systemctl --user status pipewire

● pipewire.service - PipeWire Multimedia Service
Loaded: loaded (/usr/lib/systemd/user/pipewire.service; enabled; preset: enabled)
Active: active (running) since Thu 2024-07-25 09:38:50 +07; 20min ago
TriggeredBy: ● pipewire.socket
Main PID: 828 (pipewire)
Tasks: 2 (limit: 9310)
Memory: 6.1M
CPU: 1.181s
CGroup: /user.slice/user-1000.slice/[email protected]/session.slice/pipewire.service
└─828 /usr/bin/pipewire

Jul 25 09:38:50 Leona-A22 systemd[811]: Started pipewire.service - PipeWire Multimedia Service.
Jul 25 09:38:50 Leona-A22 pipewire[828]: mod.rt: Can’t find org.freedesktop.portal.Desktop. Is xdg-desktop-portal running?
Jul 25 09:38:50 Leona-A22 pipewire[828]: mod.rt: found session bus but no portal

(I found the command from Popos audio support)

Good news for me and your wonderful team. Today I ran the updated audio script and installed a new kernel (6.6.43 - which was released 3 days ago) successfully. The internal speakers work very well.

I really appreciate your team and TimFedora for trying to help a previous Chromeos user to become a full-fledged Debian user.

Thanks to MrChromebox for an excellent job in making the UEFI firmware available.

(FYI, I owned another Asus C300SA (Terra), with a Linux distro on it. The sound is working)

You may close this support ticket.

Thank you, again.