Hello!

The microphone from my headset plugged in the jack port is not working in my Inspiron 16 Plus 7640 laptop. The codec is Realtek ALC3254.

The pavucontrol is able to show two Input Devices:

- Headphones Stereo Microphone: Should be my headset, but did not capture any audio. Something weird is that this Input Device is always being displayed there even when my headset is unplugged...

- Digital Microphone: the internal microphone, that is working.

The "Meteor Lake-P HD Audio Controller" in the Configuration just display three Profiles to choose: "Play Hifi quality Music", "Pro Audio" and "Off".

I tried to edit the file /etc/modprobe.d/alsa-base.conf and load the 'options snd-hda-intel model=dell-headset-multi', but did not work.

I am using Ubuntu 24.04.3 LTS with the latest driver available (from HWE): 6.14.0-33-generic

Technical Details

Result of aplay -l. 

**** List of PLAYBACK Hardware Devices **** 
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [DELL S3422DWG] 
 Subdevices: 0/1 
 Subdevice #0: subdevice #0 
card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] 
 Subdevices: 1/1 
 Subdevice #0: subdevice #0 
card 0: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] 
 Subdevices: 1/1 
 Subdevice #0: subdevice #0 
card 0: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3] 
 Subdevices: 1/1 
 Subdevice #0: subdevice #0 
card 1: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) [] 
 Subdevices: 0/1 
 Subdevice #0: subdevice #0 
card 1: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*) [] 
 Subdevices: 0/1 
 Subdevice #0: subdevice #0 
card 1: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*) [] 
 Subdevices: 0/1 
 Subdevice #0: subdevice #0 
card 1: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*) [] 
 Subdevices: 0/1 
 Subdevice #0: subdevice #0 
card 1: sofhdadsp [sof-hda-dsp], device 31: Deepbuffer HDA Analog (*) [] 
 Subdevices: 1/1 
 Subdevice #0: subdevice #0

Some details from the pacman list cards command:

[Out] Speaker: Speaker (type: Speaker, priority: 100, latency offset: 0 usec, availability unknown)
        Properties:
                port.type = "speaker"
                device.icon_name = "audio-speakers"
                card.profile.port = "3"
        Part of profile(s): HiFi
[Out] Headphones: Headphones (type: Headphones, priority: 200, latency offset: 0 usec, availability group: Headphone, available)
        Properties:
                port.type = "headphones"
                port.availability-group = "Headphone"
                device.icon_name = "audio-headphones"
                card.profile.port = "4"
        Part of profile(s): HiFi
[In] Mic2: Headphones Stereo Microphone (type: Mic, priority: 200, latency offset: 0 usec, availability group: Mic, availability unknown)
        Properties:
                port.type = "mic"
                port.availability-group = "Mic"
                device.icon_name = "audio-input-microphone"
                card.profile.port = "5"
        Part of profile(s): HiFi
[In] Mic1: Digital Microphone (type: Mic, priority: 100, latency offset: 0 usec, availability unknown)
        Properties:
                port.type = "mic"
                device.icon_name = "audio-input-microphone"
                card.profile.port = "6"
        Part of profile(s): HiFi

Result of the command inxi -Aa:

Audio: 
 Device-1: Intel Meteor Lake-P HD Audio vendor: Dell 
   driver: sof-audio-pci-intel-mtl 
   alternate: snd_hda_intel,snd_sof_pci_intel_mtl bus-ID: 0000:00:1f.3 
   chip-ID: 8086:7e28 class-ID: 0401 
 Device-2: NVIDIA vendor: Dell driver: snd_hda_intel v: kernel 
   bus-ID: 0000:01:00.1 chip-ID: 10de:22be class-ID: 0403 
 API: ALSA v: k6.14.0-33-generic status: kernel-api 
   tools: alsactl,alsamixer,amixer 
 Server-1: JACK v: 1.9.21 status: off tools: jack_control 
 Server-2: PipeWire v: 1.0.5 status: active with: 1: pipewire-pulse 
   status: active 2: wireplumber status: active tools: pw-cat,pw-cli,wpctl 
 Server-3: PulseAudio v: 16.1 status: off (using pipewire-pulse) 
   tools: pacat,pactl,pavucontrol

Result of searching for "sof-" in the dmesg:

[    3.903446] sof-audio-pci-intel-mtl 0000:00:1f.3: enabling device (0000 -> 0002) 
[    3.904424] sof-audio-pci-intel-mtl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100 
[    4.829228] sof-audio-pci-intel-mtl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) 
[    4.835307] sof-audio-pci-intel-mtl 0000:00:1f.3: use msi interrupt mode 
[    4.855986] sof-audio-pci-intel-mtl 0000:00:1f.3: hda codecs found, mask 5 
[    4.855990] sof-audio-pci-intel-mtl 0000:00:1f.3: using HDA machine driver skl_hda_dsp_generic now 
[    4.855992] sof-audio-pci-intel-mtl 0000:00:1f.3: NHLT device BT(0) detected, ssp_mask 0x4 
[    4.855993] sof-audio-pci-intel-mtl 0000:00:1f.3: BT link detected in NHLT tables: 0x4 
[    4.855994] sof-audio-pci-intel-mtl 0000:00:1f.3: DMICs detected in NHLT tables: 2 
[    4.861942] sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware paths/files for ipc type 1: 
[    4.861944] sof-audio-pci-intel-mtl 0000:00:1f.3:  Firmware file:     intel/sof-ipc4/mtl/sof-mtl.ri 
[    4.861945] sof-audio-pci-intel-mtl 0000:00:1f.3:  Firmware lib path: intel/sof-ipc4-lib/mtl 
[    4.861946] sof-audio-pci-intel-mtl 0000:00:1f.3:  Topology file:     intel/sof-ace-tplg/sof-hda-generic-2ch.tplg 
[    4.863832] sof-audio-pci-intel-mtl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.13.0.1 
[    4.987024] sof-audio-pci-intel-mtl 0000:00:1f.3: Booted firmware version: 2.13.0.1 
[    5.044270] sof-audio-pci-intel-mtl 0000:00:1f.3: Topology: ABI 3:29:1 Kernel ABI 3:23:1 
[    5.886201] input: sof-hda-dsp Headphone as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input28 
[    5.886261] input: sof-hda-dsp HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input29 
[    5.886298] input: sof-hda-dsp HDMI/DP,pcm=4 as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input30 
[    5.886334] input: sof-hda-dsp HDMI/DP,pcm=5 as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input31