* thinkpad t14s amd: unable to control built-in mic and headphones mic independently
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@ 2020-12-05 14:57 ` GitHub issues - opened
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From: GitHub issues - opened @ 2020-12-05 14:57 UTC (permalink / raw)
To: alsa-devel
alsa-project/alsa-ucm-conf issue #64 was opened from tanuk:
I did some investigation on a [pulseaudio bug report](https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/1067), and found that the UCM configuration for the internal mic and headset mic both use "Capture" as the CaptureMixerElem. This means that muting one device mutes also the other (and I guess volume control is shared too). In amixer output I don't see a separate control for the headset mic, but for the internal mic volume I guess "Digital" can be used (there's no switch, though).
So it seems that these changes are needed:
- don't set CaptureMixerElem, CaptureSwitch or CaptureVolume for the headset mic
- set the internal mic CaptureMixerElem and CaptureVolume to Digital
- you may want to also set CaptureMasterElem for both both mics to Capture
Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/64
Repository URL: https://github.com/alsa-project/alsa-ucm-conf
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2020-12-05 14:57 ` thinkpad t14s amd: unable to control built-in mic and headphones mic independently GitHub issues - opened
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