Microphone doesn't work over browser applications, with no error message

Hardware Support
1

Hi, I've recently installed Zorin OS on my mom computer.

Everything was fine until I tried to make a meet (Google Meet, Zoom or Jitsi Meet, same result) over Chrome.

The browser ask me to give permission to the web camera and the microphone, and that’s what I did.

There was no error on the screen, but on the other side no one was hearing my voice.

Double check the browser permissions for the mic ... was OK.

I increased the mic volume, and all I get was a noisy background.

Reading on many forums I found that there is an inversion issue between the internal microphone and the external.

I've tryed several options:

  • Enable the internal audio monitor in the pavucontrol app, and mutting the right side channel ... did't work.

  • Download and install the alsa-hda-dkms package looking to mute the "Inverted Internal Mic", but I can't see the inverted internal mic in Alsamixer.

  • Something actually did work, but the fix get lost when I restart the browser (and obviously also when I restar the whole computer) was, with the Alsamixer open, make the set and unset de external mic from pavucontrol app. It make it work into de Chrome.

  • I added in the /etc/modeprobe.d/alsa-base.conf these two properties:
    options snd_hda_intel model=laptop
    options snd-hda-intel position_fix=1 enable=yes
    Reboot
    Didn't work

  • I created new file /etc/modprobe.d/blacklist-local.conf and add the following line in it:
    blacklist snd-soc-dmic
    Reboot
    Didn't work

The audio information in the output of lspci -vv command is:

00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
Subsystem: Lenovo Sunrise Point-LP HD Audio
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 130
Region 0: Memory at b1320000 (64-bit, non-prefetchable) [size=16K]
Region 4: Memory at b1300000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee00358 Data: 0000
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

I uploaded the alfa-info output log file in the link below:
https://drive.google.com/file/d/1RpifXndqiEMIo9hP1eVjjAgXGc-QxC5M/view?usp=sharing

Thanks in advance for any help you can give me.

Regards!

Matias.

2

Yes, I have the same problem! My microphone driver seems to be working properly, and it works during zoom calls but not with any other web based apps or with Discord app for example. People keep telling me that they hear static from my end. I'm using Zorin 17.1 and this issue has been going since using Zorin 16. I don't know what to do!

Any suggestions?

3

You would maybe have been better to start a new thread, than resurect this one from 2021.

Is there any correlation between source of apps where mic works well and source of apps where mic sound is poor? (By source I mean apt, Snap, Flatpak, Appimage etc.)

What soundcard do you have.

4

Well, Thanks! I don't really know if there is a correlation.
As it happened one time, I tried my pods and the mic was working just fine with any of the apps. while the built-in mic still doesn't work and not even with Zoom anymore!! So when I need the mic, I use my pods.

TBH, at this point it is either a problem in the mic itself or in the driver!

The soundcard is Realtek