audio device changed after unlock gdm

[Le Gluon Du Net]

Hello,

after a long time of inactivites, my session automatically locked (GDM).
When I unlock it, I can no more hear audio, device is set to spdif instead of hdmi/displayport2.
I have to kill pulseaudio to retablish the good device hdmi/displayport2.
It's a very annoying bug.
Thank you for your help.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: pulseaudio 1:13.99.1-1ubuntu3.8
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: romain 419906 F.... pulseaudio
 /dev/snd/pcmC1D7p: romain 419906 F...m pulseaudio
 /dev/snd/controlC0: romain 419906 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: GNOME
Date: Mon Nov 30 19:17:44 2020
InstallationDate: Installed on 2012-07-07 (3068 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to focal on 2020-04-03 (241 days ago)
dmi.bios.date: 09/29/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V2.12
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z77A-G45 (MS-7752)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV2.12:bd09/29/2013:svnMSI:pnMS-7752:pvr1.0:rvnMSI:rnZ77A-G45(MS-7752):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: MS-7752
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 1.0
dmi.sys.vendor: MSI

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1888598, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.