PulseAudio doesn't start by logging in after a standby

[Luca Pavan]

Often when I log in after a standby PulseAudio doesn't play any audio, the service is working but no audio is heard. I noticed that when this happens, if I adjust volume the system shows Dummy Output instead of the usual speaker small window. Also, one day when I was having right this issue I simply took a screenshot to a game that I was playing and audio was played 🤨.
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: luca 1456 F.... pulseaudio
 /dev/snd/pcmC0D0p: luca 1456 F...m pulseaudio
 /dev/snd/controlC1: luca 1456 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: zorin:GNOME
DistroRelease: Zorin OS 16
InstallationDate: Installed on 2022-10-01 (325 days ago)
InstallationMedia: Zorin-OS 16.1 Core 64bit
Package: pulseaudio 1:13.99.1-1ubuntu3.13 [origin: Ubuntu]
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.15.0-78.85~20.04.1-generic 5.15.99
Tags: focal third-party-packages
Uname: Linux 5.15.0-78-generic x86_64
UnreportableReason: Questo non è un pacchetto ufficiale di Zorin. Rimuovere tutti i pacchetti di terze parti, quindi riprovare.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/28/2011
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K52N.218
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K52N
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK52N.218:bd01/28/2011:br4.6:svnASUSTeKComputerInc.:pnK52N:pvr1.0:rvnASUSTeKComputerInc.:rnK52N:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:sku:
dmi.product.name: K52N
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

  apport-collect 2029019

and then change the status of the bug report to 'New'

[Luca Pavan (anotherlucapavan)]

apport information

[Luca Pavan (anotherlucapavan)]

apport information

[Luca Pavan (anotherlucapavan)]

apport information

[Luca Pavan (anotherlucapavan)]

apport information

[Luca Pavan (anotherlucapavan)]

apport information

[Luca Pavan (anotherlucapavan)]

apport information

[Luca Pavan (anotherlucapavan)]

https://forum.zorin.com/t/no-audio-after-relogging-in/26234

[Luca Pavan (anotherlucapavan)]

Logs entries related to PulseAudio:

03:14:20 PM systemd: pulseaudio.socket: Failed with result 'service-start-limit-hit'.
03:14:13 PM dbus-daemon: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.189' (uid=1000 pid=3142 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
03:14:13 PM systemd: pulseaudio.service: Succeeded.
03:08:45 PM sudo: luca : TTY=pts/0 ; PWD=/home/luca ; USER=root ; COMMAND=/usr/bin/apt purge pulseaudio
03:07:18 PM pulseaudio: GetManagedObjects() failed: org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)
03:07:14 PM systemd: pulseaudio.service: Succeeded.
03:06:53 PM dbus-daemon: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.161' (uid=1000 pid=2849 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
03:06:52 PM systemd: pulseaudio.service: Succeeded.
03:05:24 PM pulseaudio: Error opening PCM device front:0: File or directory does not exist
 4 oct 03:31:04 PM systemd: pulseaudio.socket: Succeeded.
 4 oct 03:30:49 PM pulseaudio: GetManagedObjects() failed: org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)
 4 oct 03:30:35 PM systemd: gnome-launched-pulseaudio.desktop-1603.scope: Succeeded.
 4 oct 03:30:26 PM dbus-daemon: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.71' (uid=1000 pid=1383 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
 4 oct 03:29:12 PM system76-schedu: (Assignment(CpuPriority(-11), Realtime(PriorityLevel(0))), {"pipewire", "pipewire-pulse", "wireplumber"})