Built-in laptop microphone doesn't work in 16.9.x and Zenith

[Florisv1]

Description

Built in microphone of laptop is not recognized in Blissos 16.9.x and Blissos 16.9.x Zenith.

Reproduction steps

I tried multiple audio recording apps and voice search inside the Google play store, but the built-in Microphone of my laptop is not recognized.

Everything else works in Blissos 16.9.x and 16.9.x Zenith: Bluetooth works, wifi works, my laptop speakers work, the built-in webcam of my laptop works.

My laptop is Lenovo Yoga 7 16IAH7 (82UF0054MH)
My built-in microphone is an: Microphonematrix (Intel Smart Sound Technology for digital microphones).

Screenshots

No response

Logs

No response

Category

Sound

OS Version

16.x

[Florisv1]

Are there any steps I can try to fix this? Should I give more info?

[Florisv1]

I tried putting all the volume levels in Alsamixer to max and disabled auto-mute mode, but I still can't use my microphone.

My microphone (and sound) works out of the box on a live CD of Linux mint without changing any settings, so it's a Blissos issue and not a Linux issue.

The soundcard, recognized by Alsamixer (in Blissos and Linux Mint) is a Realtek ALC287.

[Florisv1]

I tried putting all the volume levels in Alsamixer to max and disabled auto-mute mode, but I still can't use my microphone.

My microphone (and sound) works out of the box on a live CD of Linux mint without changing any settings, so it's a Blissos issue and not a Linux issue.

The soundcard, recognized by Alsamixer (in Blissos and Linux Mint) is a Realtek ALC287.

I used su alsamixer inside Termux and changed all the sound levels (also all input levels) to their maximum.

[Florisv1]

I also used the command
ls -l /dev/snd
and did

setprop hal.audio.in _name of sound device _
pkill audioserver

for every listed sound device and checked everytime if the microphone worked.

[Florisv1]

Here are the outputs of su dmesg and su lsmod files of my Blissos installation and the output of su lsmod on my Linux mint installation. I also recorded a wav file with the command arecord --duration=5 file.wav on my Blissos installation, but the output wav file contained only noise (white noise, the same kind of sound when you play a non-existing channel on an analog radio/television). The wav file I attached is hosted on an external file host (Koofr), since I can't easily upload wav files to Github.

dmesg_blissos.txt
lsmod_blisoss.txt
lsmod_mint.txt
arecord.wav

[hmtheboy154]

[    5.490367] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
[    5.490420] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver

Do you have /dev/snd/pcmC0D3c ?

[Florisv1]

No, ls -l /dev/snd gives the following output:
total 0
crw-rw---- 1 system audio 116, 12 2024-03-03 18:25 controlC0
crw-rw---- 1 system audio 116, 11 2024-03-03 18:25 hwC0D0
crw-rw---- 1 system audio 116, 10 2024-03-03 18:25 hwC0D2
crw-rw---- 1 system audio 116, 5 2024-03-03 18:25 pcmC0D0c
crw-rw---- 1 system audio 116, 4 2024-03-03 18:25 pcmC0D0p
crw-rw---- 1 system audio 116, 6 2024-03-03 18:25 pcmC0D31p
crw-rw---- 1 system audio 116, 7 2024-03-03 18:25 pcmC0D3p
crw-rw---- 1 system audio 116, 8 2024-03-03 18:25 pcmC0D4p
crw-rw---- 1 system audio 116, 9 2024-03-03 18:25 pcmC0D5p
crw-rw---- 1 system audio 116, 2 2024-03-03 18:25 pcmC0D6c
crw-rw---- 1 system audio 116, 3 2024-03-03 18:25 pcmC0D7c
crw-rw---- 1 system audio 116, 33 2024-03-03 18:25 timer

[Florisv1]

I first replied yes, but the answer to your question is no

[hmtheboy154]

setprop persist.audio.primary.device_in 6
killall audioserver

If not working

setprop persist.audio.primary.device_in 7
killall audioserver

Remember to push every input in alsamixer (the Capture part) to 100 and unmute

[Florisv1]

The first command worked.

[Florisv1]

I can only use this fix in Zenith. In the other recent version (16.9) the Kernelsu version is too low for the manager to function properly. So I can't give the necessary sudo rights to termux. How do I update kernelsu? Do you have a link which explains this?

[Florisv1]

I'm talking about Blissos 16 beta version

[Florisv1]

Blissos 16 beta keeps telling me my kernelsu version is too low, even if I install the latest kernelsu manager apk (Version 11583). I need to flash a kernelsu zip file right? I will look if I can find out what I have to do

[electrikjesus]

The latest Bliss OS 16.x images do have a known bug with KernelSU.

[Florisv1]

Ok, so it's not possible to install the latest KernelSU in the Bèta version? I will use Blissos Zenith for now if I need to use the microphone. I got my microphone working on the Zenith version. Then we can close this issue, I think? It would have been easier if my microphone would have worked out of the box though (without running any command), so maybe still an improvement can be made?

[Florisv1]

I will try the microphone in the beta version if KernelSU works in the beta version in the future.

Thanks for your help!

[electrikjesus]

The improvement that can be made is to automate it for your device.

Can you please reply with the results of:

cat /sys/class/dmi/id/uevent

[Florisv1]

uevent_output.txt
MODALIAS=dmi:bvnLENOVO:bvrJ1CN30WW:bd05/17/2022:br1.30:efr1.30:svnLENOVO:pn82UF:pvrYoga716IAH7:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct31:cvrYoga716IAH7:skuLENOVO_MT_82UF_BU_idea_FM_Yoga716IAH7:

[Florisv1]

The latest Bliss OS 16.x images do have a known bug with KernelSU.

With this comment you meant kernelsu is not fixable in Blissos 16.x beta? Not by flashing or copying a new version ?

[electrikjesus]

No, it can be fixed with an update

[Florisv1]

Can I update kernelsu you mean (by flashing a new image)? Or do I have to wait for a new Blissos beta version?

[electrikjesus]

Correct. When the next release of Bliss OS 16.9.x comes out, you can update your current install in order to resolve this KernelSU issue