Created attachment 293463 [details] Output of `/usr/sbin/alsa-info` without external headphone plugged in On the Intel Tiger Lake laptop Dell XPS 13 9310 with Debian Sid/unstable with Linux 5.9.1 and GNOME 3.38.1, the GNOME Control Center does not list the built-in (internal) microphone in the input device list. Plugging in a headset into the audio jack, both microphones are listed. I couldn’t spot anything suspicious in the logs. Please find the output of `/usr/sbin/alsa-info` attached without and with the external headset plugged in.
Created attachment 293465 [details] Output of `/usr/sbin/alsa-info`with external headphone plugged in
It could be related to not having `PINCTRL_TIGERLAKE` selected in Debian’s Linux kernel configuration [1], but I couldn’t test it yet. [1]: https://bugs.debian.org/973372
Can you please check dmesg for any messaging around sof and missing firmware?That would be the most likely culprit to me. If that is loaded then I would make sure that you have the most up to date UCM configurations. IIRC that would be these: https://github.com/alsa-project/alsa-ucm-conf/tree/master/ucm2/hda-dsp
You are right, no sof-audio-pci messages in the Linux log. Another Tiger Lake driver option missing in Debian’s Linux kernel configuration. $ grep TIGERLAKE /boot/config-5.9.0-1-amd64 # CONFIG_PINCTRL_TIGERLAKE is not set # CONFIG_SND_SOC_SOF_TIGERLAKE_SUPPORT is not set Sorry for the noise. I wonder if warnings for these cases could be shown. Anyway, I’ll talk to Debian’s Linux kernel maintainers.