Public bug reported:
Description: Ubuntu 20.04 LTS
Release: 20.04
I can't seem to get Ubuntu to route sound out to my USB connected external
audio interface or my integrated soundcard (MSI Mortar B450M).
I have options to select either as output devices in the Sound section of the
Settings app, however, clicking any of those seems to result in the sound being
routed out to either my HDMI connected TV, or DisplayPort connected monitor -
whichever was last chosen from the list.
The list seems to get populated correctly though, and even correctly reflects
headphones being plugged into and unplugged from the front panel
The ubuntu-bug test app was able to successfully play the test tones via both
interfaces without problem.
I also notice in the Settings app's Sound section that, when switching between
my 2 audio-enabled display devices and clicking Test, the selection in the list
will revert to the 2nd item on the list (which in my case is neither of the
display devices), but the afore chosen display device will still play back the
sound.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: vidis 1815 F.... pulseaudio
/dev/snd/controlC1: vidis 1815 F.... pulseaudio
/dev/snd/pcmC1D0c: vidis 1815 F...m pulseaudio
/dev/snd/controlC2: vidis 1815 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri May 15 20:01:18 2020
InstallationDate: Installed on 2020-03-14 (61 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:HUDmx1 successful
Symptom_Card: Family 17h (Models 00h-0fh) HD Audio Controller - HD-Audio Generic
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [USB-Audio - Audinst HUD-mx1, playback] No sound at all
UpgradeStatus: Upgraded to focal on 2020-05-11 (3 days ago)
dmi.bios.date: 01/06/2020
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.D0
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: B450M MORTAR (MS-7B89)
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: 1.0
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1.D0:bd01/06/2020:svnMicro-StarInternationalCo.,Ltd.:pnMS-7B89:pvr1.0:rvnMicro-StarInternationalCo.,Ltd.:rnB450MMORTAR(MS-7B89):rvr1.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr1.0:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: MS-7B89
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 1.0
dmi.sys.vendor: Micro-Star International Co., Ltd.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1878967
Title:
[USB-Audio - Audinst HUD-mx1, playback] No sound at all.
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