alsa-project/alsa-utils pull request #281 was opened from pma1: The link name of AMD ACP digital microphones driver acp-pdm-mach is acp-dmic-codec. fix it to make UCM initialize it again. Fixes: 8116639 ("alsactl: 90-alsa-restore.rules - add support for AMD ACP digital microphone") # arecord -l **** List of CAPTURE Hardware Devices **** card 1: Generic_1 [HD-Audio Generic], device 0: ALC257 Analog [ALC257 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: acppdmmach [acp-pdm-mach], device 0: (null) dmic-hifi-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 # ls -la /sys/class/sound/controlC2/device/ total 0 drwxr-xr-x 5 root root 0 Nov 20 15:50 . drwxr-xr-x 3 root root 0 Nov 20 15:50 .. drwxr-xr-x 3 root root 0 Nov 20 15:47 controlC2 lrwxrwxrwx 1 root root 0 Nov 20 15:47 device -> ../../../acp-pdm-mach -rw-r--r-- 1 root root 4096 Nov 20 15:50 id -r--r--r-- 1 root root 4096 Nov 20 15:47 number drwxr-xr-x 3 root root 0 Nov 20 15:47 pcmC2D0c drwxr-xr-x 2 root root 0 Nov 20 15:50 power lrwxrwxrwx 1 root root 0 Nov 20 15:47 subsystem -> ../../../../../../../../class/sound -rw-r--r-- 1 root root 4096 Nov 20 15:47 uevent # ls -la /sys/class/sound/controlC2/device/device/ total 0 drwxr-xr-x 5 root root 0 Nov 20 15:50 . drwxr-xr-x 4 root root 0 Nov 20 15:50 .. drwxr-xr-x 3 root root 0 Nov 20 15:50 acp-dmic-codec lrwxrwxrwx 1 root root 0 Nov 20 15:47 driver -> ../../../../../../bus/platform/drivers/acp_mach -rw-r--r-- 1 root root 4096 Nov 20 15:50 driver_override -r--r--r-- 1 root root 4096 Nov 20 15:50 modalias drwxr-xr-x 2 root root 0 Nov 20 15:50 power drwxr-xr-x 3 root root 0 Nov 20 15:50 sound lrwxrwxrwx 1 root root 0 Nov 20 15:47 subsystem -> ../../../../../../bus/platform -rw-r--r-- 1 root root 4096 Nov 20 15:50 uevent After the change of link name acp-dmic-codec, the micmute led can work on ThinkPad T14s Gen 6. Request URL : https://github.com/alsa-project/alsa-utils/pull/281 Patch URL : https://github.com/alsa-project/alsa-utils/pull/281.patch Repository URL: https://github.com/alsa-project/alsa-utils