No microphone input or line

[F_bb]

Hi everyone,

My newlaptop for work doesn't get any mic signal, with built-in mic or headphone set mic . They both work fine on windows (dual-boot)

After cheking on Pavu control, everything seems ready to work. Only one port is available, the one selected.





Though, under ALSA no mic line seem to appear.





It's my second install on this laptop with the same issue. It's a real issue for visio-conference and work and I really don't want to return Windows...!!!

[MrEen]

Hi F_bb, and welcome to the forum.

Let's get a look at your sound setup with this command:

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curl https://gitlab.freedesktop.org/pulseaudio/pulseaudio/raw/master/src/utils/pa-info?inline=false | bash | nc termbin.com 9999

The last line of output will have a URL pointing to the info.

[F_bb]

Thanks MrEen,

I get this URL : https://termbin.com/wwhbd

Not sure how to interpret the result !

[MrEen]

Hmmm, that sound card isn't showing any input devices at all. And while that might be expected in a sense, it also isn't showing any of the sof driver stuff loaded that would explain that. Did you add something with either dmic_detect=0 or dsp_driver=1 to your kernel command line or anything like that?

[F_bb]

I didn't change anything to kernel. I only installed pulse audio...

[MrEen]

Okay, let's try forcing the sof driver and see if that helps:

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sudo tee /etc/modprobe.d/sof-fix.conf <<<'options snd-intel-dspcfg dsp_driver=3'

Run that then reboot and test. If it fails, try this one and do the same:

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sudo tee /etc/modprobe.d/sof-fix.conf <<<'options snd-intel-dspcfg dsp_driver=2'

[F_bb]

Thank you.

Okay, let's try forcing the sof driver and see if that helps:

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sudo tee /etc/modprobe.d/sof-fix.conf <<<'options snd-intel-dspcfg dsp_driver=3'

Run that then reboot and test. If it fails, try this one and do the same:

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sudo tee /etc/modprobe.d/sof-fix.conf <<<'options snd-intel-dspcfg dsp_driver=2'

I tried both. I have no input or output.

No device is available in the control panel. I can't open Alsamixer it says "no file or folder of this kind has been found. "

Hmmm, that sound card isn't showing any input devices at all. And while that might be expected in a sense, it also isn't showing any of the sof driver stuff loaded that would explain that. Did you add something with either dmic_detect=0 or dsp_driver=1 to your kernel command line or anything like that?

Actually I did remember I got this help from another forum asking me to chage this line inside grub :
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"

[MrEen]

Try this one now:

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sudo tee /etc/modprobe.d/sof-fix.conf <<<'options snd-intel-dspcfg dsp_driver=1'

[F_bb]

Output is back to normal, I still don't get any input though. In Alsamixer no micro line appears.

[MrEen]

Okay, remove that with this:

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sudo rm /etc/modprobe.d/sof-fix.conf

I'm almost certain you need the sof driver here, but don't know why it isn't loading.

If you run the Live ISO that you used to install with, does the input work there?

[F_bb]

If you run the Live ISO that you used to install with, does the input work there?

Just to make sure I get that right. You suggest that I boot from my usb stick to check if the mic works then am I correct?
From what I can remember, I did try the sound output when I first booted on the ISO before the install, but not the mic.

I'll try that tomorrow, I don't have it with me right now.
Thanks a lot for your time

[MrEen]

Yes, you got it correct.

Those Swift models have been a pain for a while for mic input. The sof audio driver generally cured that, but for some reason your system isn't recognizing it as needed, which it should do automatically. And when we forced it, it made things worse.

If the mic does work on the Live ISO, run the curl command there:

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curl https://gitlab.freedesktop.org/pulseaudio/pulseaudio/raw/master/src/utils/pa-info?inline=false | bash | nc termbin.com 9999

I'm willing to bet it will show the sof driver in use. Short of a reinstall, I'm not sure what else we can do, but I'll try to come up with something.

[F_bb]

Hi,

If the mic does work on the Live ISO, run the curl command there:

Too bad... It does not work either from the ISO. The device shows up in control panel, exactly like on the installed OS, "output works fine, but no input... Neither on the built-in mic nor the headset one.

Does that mean there's no workaround?

[MrEen]

Does that mean there's no workaround?

Hopefully not, but we're getting low on ideas here. Try a 5.8 kernel. Update Manager > View > Linux kernels. Reboot after installing the highest 5.8 kernel and see if that solves this.

[F_bb]

Unfortunately with the highest 5.8 kernel, the system doesn't find the hardware device, no input or output. !!!

[F_bb]

Hopefully not, but we're getting low on ideas here. Try a 5.8 kernel. Update Manager > View > Linux kernels. Reboot after installing the highest 5.8 kernel and see if that solves this.

It didn't work (cf my previous post)

And I'm a bit disappointed about myself that i didn't pay attention to wich was the Kernel I was before the change. I'd like to go back to the original (from the first install) I was using before to get the output sound back. Any advice on how to know which one it was and pick get back to it correctly?
Maybe there's something else to try out before going back to the original?

[MrEen]

In the Advanced option of the grub menu you can see all the kernels that are installed and boot to your choice. If I'm not mistaken, the oldest will be at the bottom of the list. Once booted to it, and confirming things work, you can then uninstall all the others that aren't working the same way you installed the 5.8 kernel.

[F_bb]

In the Advanced option of the grub menu you can see all the kernels that are installed and boot to your choice. If I'm not mistaken, the oldest will be at the bottom of the list. Once booted to it, and confirming things work, you can then uninstall all the others that aren't working the same way you installed the 5.8 kernel.

Great thank you very much for your time, sound is back through the speakers but still no microphone working...
Other ideas?

[MrEen]

Sorry. New job is drastically reducing my time here.

Let's get a look at this again:

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curl https://gitlab.freedesktop.org/pulseaudio/pulseaudio/raw/master/src/utils/pa-info?inline=false | bash | nc termbin.com 9999

[F_bb]

Sorry. New job is drastically reducing my time here.

No pb! I'm already glad I get help from you.

Here you are : https://termbin.com/lstf
Thank you