ALSA sees my intel soundcards but pulseaudio does not. Error is : "Failed to open module /usr/lib/pulse-13.99.1/modules/module-alsa-card.so: /usr/lib/pulse-13.99.1/modules/libalsa-util.so: undefined symbol: snd_use_case_parse_ctl_elem_id, version ALSA_0.9"

[Phil Macias]

ALSA sees my intel soundcards but pulseaudio does not.

'pavucontrol' sees only a "Dummy" device.

#journalctl|grep pulse' gives "pulseaudio[18489]: Failed to open module /usr/lib/pulse-13.99.1/modules/module-alsa-card.so: /usr/lib/pulse-13.99.1/modules/libalsa-util.so: undefined symbol: snd_use_case_parse_ctl_elem_id, version ALSA_0.9"

Making pulseaudio from source fixes the problem/

(Linux CF-C2CQAZXCM 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux 20.04)

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: pulseaudio 1:13.99.1-1ubuntu3.2
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: skip
CurrentDesktop: GNOME-Flashback:GNOME
Date: Wed May 20 12:48:07 2020
InstallationDate: Installed on 2015-04-29 (1848 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/tcsh
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to focal on 2020-05-05 (15 days ago)
dmi.bios.date: 09/12/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V2.00L21
dmi.board.asset.tag: No Asset Tag
dmi.board.name: CFC2-2
dmi.board.vendor: Panasonic Corporation
dmi.board.version: 1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Panasonic Corporation
dmi.chassis.version: 001
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV2.00L21:bd09/12/2018:svnPanasonicCorporation:pnCF-C2CQAZXCM:pvr002:rvnPanasonicCorporation:rnCFC2-2:rvr1:cvnPanasonicCorporation:ct10:cvr001:
dmi.product.family: CFC2-2
dmi.product.name: CF-C2CQAZXCM
dmi.product.sku: CF-C2CQAZXCM
dmi.product.version: 002
dmi.sys.vendor: Panasonic Corporation
mtime.conffile..etc.init.d.apport: 2020-02-26T22:18:45

[Hui Wang (hui.wang)]

Please uninstall the jack and timidity, then redo the test.

[Hui Wang (hui.wang)]

Probably it is same as this one: https://bugs.launchpad.net/ubuntu/+source/timidity/+bug/1793640

[Daniel van Vugt (vanvugt)]

Please uninstall jackd and timidity, then reboot :)

[Phil Macias (phil-vr7j)]

I purged and installed jackd1
I never had but then installed jackd
I never had but then installed timidity

Rebooted and still only the dummy device and

#journalctl |grep pulseaudio

 Failed to open module "module-alsa-card".
May 21 13:47:15 CF-C2CQAZXCM pulseaudio[3849]: Failed to open module /usr/lib/pulse-13.99.1/modules/module-alsa-card.so: /usr/lib/pulse-13.99.1/modules/libalsa-util.so: undefined symbol: snd_use_case_parse_ctl_elem_id, version ALSA_0.9

alsamixer sees the cards

__END__

[Hui Wang (hui.wang)]

snd_use_case_parse_ctl_elem_id() is defined in the latest libasound2 (>=1.2.1), maybe reinstall the libaousnd2 and pulseaudio could help.

[Phil Macias (phil-vr7j)]

Thank you, but didn't help. "debuild" and plain old make failed:

...
  CCLD alsa-mixer-path-test
/usr/bin/ld: ./.libs/libalsa-util.so: undefined reference to `snd_use_case_parse_ctl_elem_id'
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:6955: alsa-mixer-path-test] Error 1
make[3]: Leaving directory '/root/DEV/pulseaudio-13.99.1/src'
make[2]: *** [Makefile:5401: all] Error 2
make[2]: Leaving directory '/root/DEV/pulseaudio-13.99.1/src'
make[1]: *** [Makefile:833: all-recursive] Error 1
make[1]: Leaving directory '/root/DEV/pulseaudio-13.99.1'
make: *** [Makefile:648: all] Error 2

# ~/DEV/pulseaudio-13.99.1# dpkg -l | grep libasound
ii libasound2:amd64 1.2.2-2.1 amd64 shared library for ALSA applications
ii libasound2:i386 1.2.2-2.1 i386 shared library for ALSA applications
ii libasound2-data 1.2.2-2.1 all Configuration files and profiles for ALSA drivers
ii libasound2-dev:amd64 1.2.2-2.1 amd64 shared library for ALSA applications -- development files
ii libasound2-plugins:amd64 1.2.2-1ubuntu1 amd64 ALSA library additional plugins
rc libasound2-plugins:i386 1.2.2-1ubuntu1 i386 ALSA library additional plugins

[Daniel van Vugt (vanvugt)]

FYI the symbol is here:

$ objdump -T /lib/x86_64-linux-gnu/libasound.so.2 | grep snd_use_case_parse_ctl_elem_id
00000000000b5a40 g DF .text 0000000000000110 ALSA_0.9 snd_use_case_parse_ctl_elem_id

And I can't reproduce the bug here.