Bug 1934754 - Unable to record sound using internal microphone (Thinkbook 13s IML)
Summary: Unable to record sound using internal microphone (Thinkbook 13s IML)
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: alsa-lib
Version: 33
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Jaroslav Kysela
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2021-03-03 19:09 UTC by Anton
Modified: 2021-03-17 07:34 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed:
Type: Bug

Attachments (Terms of Use)
alsa-info report (38.61 KB, text/plain)
2021-03-03 19:09 UTC, Anton
no flags Details
Sound Recorder audio (11.23 KB, audio/flac)
2021-03-03 19:11 UTC, Anton
no flags Details
Output from dmesg --level=err,warn (7.19 KB, text/plain)
2021-03-04 10:44 UTC, Anton
no flags Details

Description Anton 2021-03-03 19:09:55 UTC
Created attachment 1760477 [details]
alsa-info report

Description of problem:

After installing Fedora 33 on my laptop (Thinkbook 13s IML) I'm unable to use its internal microphone to record anything. It is recognized by system as "Digital Microphone - sof-hda-dsp", but there is no input from it.

I have tried to record using Sound Recorder - file attached. There is a high noise in the beginning and after that only silence.

I could confirm that microphone works under Windows 10. Also I can use microphone from plugged in headphones.

Comment 1 Anton 2021-03-03 19:11:01 UTC
Created attachment 1760478 [details]
Sound Recorder audio

Comment 2 Anton 2021-03-04 10:44:23 UTC
Created attachment 1760645 [details]
Output from dmesg --level=err,warn

Comment 3 Anton 2021-03-16 12:07:34 UTC
I have tried Fedora 34 Beta 1.2 on the same laptop. Now its microphone listed as "Digital Microphone - Comet Lake PCH-LP cAVS", but the same problem still persists.

Comment 4 Jaroslav Kysela 2021-03-16 12:23:25 UTC
Could you enter a bug to the SOF project to reach the Intel developers?


You can put a link to this bug for the alsa-info / dmesg info.

Comment 5 Anton 2021-03-16 13:53:36 UTC
Reported upstream: https://github.com/thesofproject/sof/issues/3929

Comment 6 Anton 2021-03-17 07:34:13 UTC
Found temporary solution here: https://github.com/thesofproject/linux/issues/2460#issuecomment-779212719

When I'm using that custom topology file from the link above built-in microphone works fine.

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