Public bug reported:
PulseAudio 1:13.99.1-1ubuntu3.10, Ubuntu 20.04.2
Laptop: Lenovo ThinkPad X1 Carbon 7th
Soundcards:
0 [sofhdadsp ]: sof-hda-dsp - sof-hda-dsp
LENOVO-20QES01L00-ThinkPadX1Carbon7th
1 [Audio ]: USB-Audio - ThinkPad Dock USB Audio
Generic ThinkPad Dock USB Audio at
usb-0000:00:14.0-5.4.4, high speed
When the laptop is not docked, everything works fine. Sound is played
using the laptop internal speakers. When the laptop is in the docking
station, the sound in KDE is not working (no sound devices are shown).
Pulseaudio is crashing with an Assertion.
D: [pulseaudio] alsa-mixer.c: Profile output:analog-stereo supported.
D: [pulseaudio] conf-parser.c: Parsing configuration file
'/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf'
D: [pulseaudio] conf-parser.c: Parsing configuration file
'/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common'
E: [pulseaudio] alsa-mixer.c: Assertion 'section' failed at
modules/alsa/alsa-mixer.c:1954, function pa_alsa_element_get(). Aborting.
Prime suspect for the change is an "Embedded Controller Update" by fwupdmgr,
which was installed a while ago, and applied during last reboot. This cannot be
downgraded (Lenovo does not support that).
More details from "pulseaudio -vvvv", docked:
I: [pulseaudio] module.c: Loaded "module-stream-restore" (index: #1; argument:
"").
D: [pulseaudio] database-tdb.c: Opened TDB database
'/home/ads/.pulse/8815a710d4ce4667b8c98403eec58bed-card-database.tdb'
I: [pulseaudio] module-card-restore.c: Successfully opened database file
'/home/ads/.pulse/8815a710d4ce4667b8c98403eec58bed-card-database'.
I: [pulseaudio] module.c: Loaded "module-card-restore" (index: #2; argument:
"").
I: [pulseaudio] module.c: Loaded "module-augment-properties" (index: #3;
argument: "").
I: [pulseaudio] module.c: Loaded "module-switch-on-port-available" (index: #4;
argument: "").
D: [pulseaudio] module.c: Checking for existence of
'/usr/lib/pulse-13.99.1/modules/module-switch-on-connect.so': success
I: [pulseaudio] module.c: Loaded "module-switch-on-connect" (index: #5;
argument: "").
D: [pulseaudio] module.c: Checking for existence of
'/usr/lib/pulse-13.99.1/modules/module-udev-detect.so': success
D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC1 is accessible: yes
D: [pulseaudio] module-udev-detect.c:
/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5.4/1-5.4.4/1-5.4.4:1.0/sound/card1
is busy: no
D: [pulseaudio] module-udev-detect.c: Loading module-alsa-card with arguments
'device_id="1" name="usb-Generic_ThinkPad_Dock_USB_Audio-00"
card_name="alsa_card.usb-Generic_ThinkPad_Dock_USB_Audio-00" namereg_fail=false
tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes
avoid_resampling=no card_properties="module-udev-detect.discovered=1"'
D: [pulseaudio] dbus-util.c: Successfully connected to D-Bus session bus
0dd0d23e5ac302eec692d2b2606b9c78 as :1.81
D: [pulseaudio] reserve-wrap.c: Successfully acquired reservation lock on
device 'Audio1'
I: [pulseaudio] (alsa-lib)main.c: error: failed to import hw:1 use case
configuration -2
I: [pulseaudio] (alsa-lib)main.c: error: failed to import ThinkPad Dock USB
Audio use case configuration -2
I: [pulseaudio] alsa-ucm.c: UCM not available for card ThinkPad Dock USB Audio
D: [pulseaudio] conf-parser.c: Parsing configuration file
'/usr/share/pulseaudio/alsa-mixer/profile-sets/default.conf'
D: [pulseaudio] alsa-mixer.c: Looking at profile input:analog-stereo
D: [pulseaudio] alsa-mixer.c: Checking for recording on Analog Stereo
(analog-stereo)
D: [pulseaudio] alsa-util.c: Trying front:1 with SND_PCM_NO_AUTO_FORMAT ...
Not docked:
I: [pulseaudio] module.c: Loaded "module-stream-restore" (index: #1; argument:
"").
D: [pulseaudio] database-tdb.c: Opened TDB database
'/home/ads/.pulse/8815a710d4ce4667b8c98403eec58bed-card-database.tdb'
I: [pulseaudio] module-card-restore.c: Successfully opened database file
'/home/ads/.pulse/8815a710d4ce4667b8c98403eec58bed-card-database'.
I: [pulseaudio] module.c: Loaded "module-card-restore" (index: #2; argument:
"").
I: [pulseaudio] module.c: Loaded "module-augment-properties" (index: #3;
argument: "").
I: [pulseaudio] module.c: Loaded "module-switch-on-port-available" (index: #4;
argument: "").
D: [pulseaudio] module.c: Checking for existence of
'/usr/lib/pulse-13.99.1/modules/module-switch-on-connect.so': success
I: [pulseaudio] module.c: Loaded "module-switch-on-connect" (index: #5;
argument: "").
D: [pulseaudio] module.c: Checking for existence of
'/usr/lib/pulse-13.99.1/modules/module-udev-detect.so': success
D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC0 is accessible: yes
D: [pulseaudio] module-udev-detect.c:
/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0 is busy: no
D: [pulseaudio] module-udev-detect.c: Loading module-alsa-card with arguments
'device_id="0" name="pci-0000_00_1f.3-platform-skl_hda_dsp_generic"
card_name="alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic"
namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no
deferred_volume=yes use_ucm=yes avoid_resampling=no
card_properties="module-udev-detect.discovered=1"'
D: [pulseaudio] dbus-util.c: Successfully connected to D-Bus session bus
0dd0d23e5ac302eec692d2b2606b9c78 as :1.75
D: [pulseaudio] reserve-wrap.c: Successfully acquired reservation lock on
device 'Audio0'
I: [pulseaudio] alsa-ucm.c: UCM available for card hw:0
I: [pulseaudio] alsa-ucm.c: Set UCM verb to HiFi
D: [pulseaudio] alsa-ucm.c: Got PlaybackPCM for device HDMI3: hw:sofhdadsp,5
D: [pulseaudio] alsa-ucm.c: Got PlaybackCTL for device HDMI3: hw:sofhdadsp
D: [pulseaudio] alsa-ucm.c: Got PlaybackPriority for device HDMI3: 700
D: [pulseaudio] alsa-ucm.c: Got CaptureCTL for device HDMI3: hw:sofhdadsp
D: [pulseaudio] alsa-ucm.c: Got JackControl for device HDMI3: HDMI/DP,pcm=5 Jack
I: [pulseaudio] alsa-ucm.c: UCM file does not specify 'PlaybackChannels' for
device HDMI3, assuming stereo.
D: [pulseaudio] alsa-ucm.c: No _conflictingdevs for device HDMI3
D: [pulseaudio] alsa-ucm.c: No _supporteddevs for device HDMI3
Checked the backup a couple days back, there are no differences in /etc/alsa,
/etc/pulse, or /usr/share/alsa and /usr/share/pulseaudio.
When I remove all config from the following files:
* /usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones-2.conf
* /usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones.conf
* /usr/share/pulseaudio/alsa-mixer/paths/analog-output-lineout.conf
* /usr/share/pulseaudio/alsa-mixer/paths/analog-output-speaker.conf
* /usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf
* /usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common
then Pulseaudio is starting without error, but missing large parts of
the audio configuration.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1922621
Title:
PulseAudio Assertion 'section' in pa_alsa_element_get() when laptop in
docking station
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