Bug#1116202: pulseaudio: SOF digital microphone not detected
Yves-Alexis Perez
corsac at debian.org
Wed Sep 24 11:17:35 BST 2025
Package: pulseaudio
Version: 17.0+dfsg1-2+b1
Severity: normal
Hi,
sorry if this is a duplicate bug, or maybe a skill issue on my part. I
recently got a Lenovo ThinkPad X13G5 and until recently didn't try to
use sound from the internal devices, just using a headset plugged on the
USB dock (which was working fine).
The soundcard is based uses the SOF firmware so I installed the
firmware-sof-signed package and that made the speakers appear in
pavucontrol and they're working just fine but the internal microphone(s)
don't seem detected.
dmesg shows:
[ 13.902169] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
I've checked alsamixer and arecord -l and the microphone seems to exist:
arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Au [ThinkPad USB-C Dock Gen2 USB Au], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: sofhdadsp [sof-hda-dsp], device 6: DMIC Raw (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
But they're not shown in pulseaudio:
pacmd list-cards
4 card(s) available.
index: 0
name: <alsa_card.usb-Lenovo_ThinkPad_USB-C_Dock_Gen2_USB_Audio_000000000000-00>
driver: <module-alsa-card.c>
owner module: 6
properties:
alsa.card = "0"
alsa.card_name = "ThinkPad USB-C Dock Gen2 USB Au"
alsa.long_card_name = "Lenovo ThinkPad USB-C Dock Gen2 USB Au at usb-0000:00:14.0-3.3.3.2, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:14.0-usb-0:3.3.3.2:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.3/3-3.3.3/3-3.3.3.2/3-3.3.3.2:1.0/sound/card0"
udev.id = "usb-Lenovo_ThinkPad_USB-C_Dock_Gen2_USB_Audio_000000000000-00"
device.bus = "usb"
device.vendor.id = "17ef"
device.vendor.name = "Lenovo"
device.product.id = "a396"
device.product.name = "ThinkPad USB-C Dock Gen2 USB Audio"
device.serial = "Lenovo_ThinkPad_USB-C_Dock_Gen2_USB_Audio_000000000000"
device.string = "0"
device.description = "ThinkPad USB-C Dock Gen2 USB Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
profiles:
input:mono-fallback: Mono Input (priority 1, available: unknown)
output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
output:analog-stereo+input:mono-fallback: Analog Stereo Output + Mono Input (priority 6501, available: unknown)
off: Off (priority 0, available: unknown)
active profile: <output:analog-stereo+input:mono-fallback>
sinks:
alsa_output.usb-Lenovo_ThinkPad_USB-C_Dock_Gen2_USB_Audio_000000000000-00.analog-stereo/#0: ThinkPad USB-C Dock Gen2 USB Audio Analog Stereo
sources:
alsa_output.usb-Lenovo_ThinkPad_USB-C_Dock_Gen2_USB_Audio_000000000000-00.analog-stereo.monitor/#0: Monitor of ThinkPad USB-C Dock Gen2 USB Audio Analog Stereo
alsa_input.usb-Lenovo_ThinkPad_USB-C_Dock_Gen2_USB_Audio_000000000000-00.mono-fallback/#1: ThinkPad USB-C Dock Gen2 USB Audio Mono
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
properties:
index: 1
name: <alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "1"
alsa.card_name = "sof-hda-dsp"
alsa.long_card_name = "LENOVO-21LUCTO1WW-ThinkPadX13Gen5"
alsa.driver_name = "snd_soc_skl_hda_dsp"
device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "7e28"
device.product.name = "Meteor Lake-P HD Audio Controller"
device.string = "1"
device.description = "Meteor Lake-P HD Audio Controller"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
input:stereo-fallback: Stereo Input (priority 51, available: no)
output:stereo-fallback: Stereo Output (priority 37868, available: unknown)
output:stereo-fallback+input:stereo-fallback: Stereo Output + Stereo Input (priority 5151, available: unknown)
off: Off (priority 0, available: unknown)
active profile: <output:stereo-fallback+input:stereo-fallback>
sinks:
alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.stereo-fallback/#1: Meteor Lake-P HD Audio Controller Stereo
sources:
alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.stereo-fallback.monitor/#2: Monitor of Meteor Lake-P HD Audio Controller Stereo
alsa_input.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.stereo-fallback/#3: Meteor Lake-P HD Audio Controller Stereo
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-input-microphone"
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
index: 2
(« Microphone » seems to be the analog 3.5mm jack and it shows as
unplugged in pavucontrol).
Following some random advice on the internet, I've added the following
/etc/pulse/default.pa.d/dmic.pa file:
load-module module-alsa-source device=hw:1,6
Using the number found in arecord -l.
After restarting pulseaudio daemon I now get a new input device in
pavucontrol but it's apparently not shown in pacmd list-cards.
That device seems to get sound at first sight but I'm unsure why it's
not detected without the config file, and why it doesn't appear in
pacmd.
Any pointer appreciated.
Thank you for your work!
Regards,
-- Package-specific info:
File '/etc/default/pulseaudio' does not exist
-- System Information:
Debian Release: forky/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (450, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.16.8+deb14-amd64 (SMP w/14 CPU threads; PREEMPT)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages pulseaudio depends on:
ii adduser 3.153
ii init-system-helpers 1.69
ii libabsl20240722 20240722.0-4
ii libasound2-plugins 1.2.12-2+b1
ii libasound2t64 1.2.14-2
ii libc6 2.41-12
ii libcap2 1:2.75-10+b1
ii libdbus-1-3 1.16.2-2
ii libfftw3-single3 3.3.10-2+b1
ii libgcc-s1 15.2.0-4
ii libglib2.0-0t64 2.84.4-3
ii libgstreamer-plugins-base1.0-0 1.26.6-1
ii libgstreamer1.0-0 1.26.6-1
ii libice6 2:1.1.1-1
ii libltdl7 2.5.4-5
ii liborc-0.4-0t64 1:0.4.41-1
ii libpulse0 17.0+dfsg1-2+b1
ii libsm6 2:1.2.6-1
ii libsndfile1 1.2.2-3
ii libsoxr0 0.1.3-4+b2
ii libspeexdsp1 1.2.1-3
ii libstdc++6 15.2.0-4
ii libsystemd0 258-1
ii libtdb1 2:1.4.14+samba4.23.0+dfsg-3
ii libudev1 258-1
ii libwebrtc-audio-processing-1-3 1.3-3+b1
ii libwrap0 7.6.q-36
ii libx11-6 2:1.8.12-1
ii libx11-xcb1 2:1.8.12-1
ii libxcb1 1.17.0-2+b1
ii libxtst6 2:1.2.5-1
ii pulseaudio-utils 17.0+dfsg1-2+b1
Versions of packages pulseaudio recommends:
ii dbus-user-session 1.16.2-2
ii libpam-systemd [logind] 258-1
pn rtkit <none>
Versions of packages pulseaudio suggests:
pn paprefs <none>
ii pavucontrol 6.1-1
pn pavumeter <none>
ii udev 258-1
-- no debconf information
-------------- next part --------------
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
## Configuration file for PulseAudio clients. See pulse-client.conf(5) for
## more information. Default values are commented out. Use either ; or # for
## commenting.
; default-sink =
; default-source =
; default-server =
; default-dbus-server =
; autospawn = yes
; daemon-binary = /usr/bin/pulseaudio
; extra-arguments = --log-target=syslog
; cookie-file =
; enable-shm = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
; auto-connect-localhost = no
; auto-connect-display = no
-------------- next part --------------
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
## Configuration file for the PulseAudio daemon. See pulse-daemon.conf(5) for
## more information. Default values are commented out. Use either ; or # for
## commenting.
; daemonize = no
; fail = yes
; allow-module-loading = yes
; allow-exit = yes
; use-pid-file = yes
; system-instance = no
; local-server-type = user
; enable-shm = yes
; enable-memfd = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
; lock-memory = no
; cpu-limit = no
; high-priority = yes
; nice-level = -11
; realtime-scheduling = yes
; realtime-priority = 5
; exit-idle-time = 20
; scache-idle-time = 20
; dl-search-path = (depends on architecture)
; load-default-script-file = yes
; default-script-file = /etc/pulse/default.pa
; log-target = auto
; log-level = notice
; log-meta = no
; log-time = no
; log-backtrace = 0
; resample-method = speex-float-1
; avoid-resampling = false
; enable-remixing = yes
; remixing-use-all-sink-channels = yes
; remixing-produce-lfe = no
; remixing-consume-lfe = no
; lfe-crossover-freq = 0
; flat-volumes = no
; rescue-streams = yes
; rlimit-fsize = -1
; rlimit-data = -1
; rlimit-stack = -1
; rlimit-core = -1
; rlimit-as = -1
; rlimit-rss = -1
; rlimit-nproc = -1
; rlimit-nofile = 256
; rlimit-memlock = -1
; rlimit-locks = -1
; rlimit-sigpending = -1
; rlimit-msgqueue = -1
; rlimit-nice = 31
; rlimit-rtprio = 9
; rlimit-rttime = 200000
; default-sample-format = s16le
; default-sample-rate = 44100
; alternate-sample-rate = 48000
; default-sample-channels = 2
; default-channel-map = front-left,front-right
; default-fragments = 4
; default-fragment-size-msec = 25
; enable-deferred-volume = yes
; deferred-volume-safety-margin-usec = 8000
; deferred-volume-extra-delay-usec = 0
-------------- next part --------------
#!/usr/bin/pulseaudio -nF
#
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
# This startup script is used only if PulseAudio is started per-user
# (i.e. not in system mode)
.fail
### Automatically restore the volume of streams and devices
load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore
### Automatically augment property information from .desktop files
### stored in /usr/share/application
load-module module-augment-properties
### Should be after module-*-restore but before module-*-detect
load-module module-switch-on-port-available
### Load audio drivers statically
### (it's probably better to not load these drivers manually, but instead
### use module-udev-detect -- see below -- for doing this automatically)
#load-module module-alsa-sink
#load-module module-alsa-source device=hw:1,0
#load-module module-oss device="/dev/dsp" sink_name=output source_name=input
#load-module module-oss-mmap device="/dev/dsp" sink_name=output source_name=input
#load-module module-null-sink
#load-module module-pipe-sink
### Automatically load driver modules depending on the hardware available
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
### Use the static hardware detection module (for systems that lack udev support)
load-module module-detect
.endif
### Automatically connect sink and source if JACK server is present
.ifexists module-jackdbus-detect.so
.nofail
load-module module-jackdbus-detect channels=2
.fail
.endif
### Automatically load driver modules for Bluetooth hardware
.ifexists module-bluetooth-policy.so
load-module module-bluetooth-policy
.endif
.ifexists module-bluetooth-discover.so
load-module module-bluetooth-discover
.endif
### Load several protocols
.ifexists module-esound-protocol-unix.so
load-module module-esound-protocol-unix
.endif
load-module module-native-protocol-unix
### Network access (may be configured with paprefs, so leave this commented
### here if you plan to use paprefs)
#load-module module-esound-protocol-tcp
#load-module module-native-protocol-tcp
#load-module module-zeroconf-publish
### Load the RTP receiver module (also configured via paprefs, see above)
#load-module module-rtp-recv
### Load the RTP sender module (also configured via paprefs, see above)
#load-module module-null-sink sink_name=rtp format=s16be channels=2 rate=44100 sink_properties="device.description='RTP Multicast Sink'"
#load-module module-rtp-send source=rtp.monitor
### Load additional modules from GSettings. This can be configured with the paprefs tool.
### Please keep in mind that the modules configured by paprefs might conflict with manually
### loaded modules.
.ifexists module-gsettings.so
.nofail
load-module module-gsettings
.fail
.endif
### Automatically restore the default sink/source when changed by the user
### during runtime
### NOTE: This should be loaded as early as possible so that subsequent modules
### that look up the default sink/source get the right value
load-module module-default-device-restore
### Make sure we always have a sink around, even if it is a null sink.
load-module module-always-sink
### Honour intended role device property
load-module module-intended-roles
### Automatically suspend sinks/sources that become idle for too long
load-module module-suspend-on-idle
### If autoexit on idle is enabled we want to make sure we only quit
### when no local session needs us anymore.
.ifexists module-console-kit.so
load-module module-console-kit
.endif
.ifexists module-systemd-login.so
load-module module-systemd-login
.endif
### Enable positioned event sounds
load-module module-position-event-sounds
### Cork music/video streams when a phone stream is active
load-module module-role-cork
### Modules to allow autoloading of filters (such as echo cancellation)
### on demand. module-filter-heuristics tries to determine what filters
### make sense, and module-filter-apply does the heavy-lifting of
### loading modules and rerouting streams.
load-module module-filter-heuristics
load-module module-filter-apply
### Make some devices default
#set-default-sink output
#set-default-source input
### Allow including a default.pa.d directory, which if present, can be used
### for additional configuration snippets.
### Note that those snippet files must have a .pa file extension, not .conf
.nofail
.include /etc/pulse/default.pa.d
-------------- next part --------------
#!/usr/bin/pulseaudio -nF
#
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
# This startup script is used only if PulseAudio is started in system
# mode.
### Automatically restore the volume of streams and devices
load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore
### Automatically load driver modules depending on the hardware available
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
### Use the static hardware detection module (for systems that lack udev/hal support)
load-module module-detect
.endif
### Load several protocols
.ifexists module-esound-protocol-unix.so
load-module module-esound-protocol-unix
.endif
load-module module-native-protocol-unix
### Automatically restore the default sink/source when changed by the user
### during runtime
### NOTE: This should be loaded as early as possible so that subsequent modules
### that look up the default sink/source get the right value
load-module module-default-device-restore
### Make sure we always have a sink around, even if it is a null sink.
load-module module-always-sink
### Automatically suspend sinks/sources that become idle for too long
load-module module-suspend-on-idle
### Enable positioned event sounds
load-module module-position-event-sounds
### Allow including a system.pa.d directory, which if present, can be used
### for additional configuration snippets.
### Note that those snippet files must have a .pa file extension, not .conf
.nofail
.include /etc/pulse/system.pa.d
-------------- next part --------------
null
Discard all samples (playback) or generate zero samples (capture)
default
Default Audio Device
sysdefault
Default Audio Device
lavrate
Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
Rate Converter Plugin Using Samplerate Library
speexrate
Rate Converter Plugin Using Speex Resampler
jack
JACK Audio Connection Kit
oss
Open Sound System
pulse
PulseAudio Sound Server
speex
Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
Plugin for channel upmix (4,6,8)
vdownmix
Plugin for channel downmix (stereo) with a simple spacialization
hw:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
Direct hardware device without any conversions
plughw:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
Hardware device with all software conversions
default:CARD=Au
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
Default Audio Device
sysdefault:CARD=Au
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
Default Audio Device
front:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
Front output / input
surround21:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Au,DEV=0
ThinkPad USB-C Dock Gen2 USB Au, USB Audio
Direct sample mixing device
usbstream:CARD=Au
ThinkPad USB-C Dock Gen2 USB Au
USB Stream Output
hw:CARD=sofhdadsp,DEV=0
sof-hda-dsp,
Direct hardware device without any conversions
hw:CARD=sofhdadsp,DEV=3
sof-hda-dsp,
Direct hardware device without any conversions
hw:CARD=sofhdadsp,DEV=4
sof-hda-dsp,
Direct hardware device without any conversions
hw:CARD=sofhdadsp,DEV=5
sof-hda-dsp,
Direct hardware device without any conversions
hw:CARD=sofhdadsp,DEV=31
sof-hda-dsp,
Direct hardware device without any conversions
plughw:CARD=sofhdadsp,DEV=0
sof-hda-dsp,
Hardware device with all software conversions
plughw:CARD=sofhdadsp,DEV=3
sof-hda-dsp,
Hardware device with all software conversions
plughw:CARD=sofhdadsp,DEV=4
sof-hda-dsp,
Hardware device with all software conversions
plughw:CARD=sofhdadsp,DEV=5
sof-hda-dsp,
Hardware device with all software conversions
plughw:CARD=sofhdadsp,DEV=31
sof-hda-dsp,
Hardware device with all software conversions
default:CARD=sofhdadsp
sof-hda-dsp,
Default Audio Device
sysdefault:CARD=sofhdadsp
sof-hda-dsp,
Default Audio Device
dmix:CARD=sofhdadsp,DEV=0
sof-hda-dsp,
Direct sample mixing device
dmix:CARD=sofhdadsp,DEV=3
sof-hda-dsp,
Direct sample mixing device
dmix:CARD=sofhdadsp,DEV=4
sof-hda-dsp,
Direct sample mixing device
dmix:CARD=sofhdadsp,DEV=5
sof-hda-dsp,
Direct sample mixing device
dmix:CARD=sofhdadsp,DEV=31
sof-hda-dsp,
Direct sample mixing device
usbstream:CARD=sofhdadsp
sof-hda-dsp
USB Stream Output
-------------- next part --------------
Connection failure: Connection refused
pa_context_connect() failed: Connection refused
-------------- next part --------------
Connection failure: Connection refused
pa_context_connect() failed: Connection refused
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