Hi Charles,
sorry for delayed response please find the attached logs
RegardsAbhay Sapru+919930653403
On Monday 23 February, 2026 at 03:00:30 pm IST, Charles
<[email protected]> wrote:
Thank you for taking the time to report this bug.
I'm not able to reproduce this here, but it looks like a blocked
syscall. I was hoping to find something like "Disallowed syscall ..." in
your journal, but the NVIDIA driver is spamming your system log, so
there's not much to go off there. You might be getting affected by
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-
drivers-590/+bug/2142443
Are there crash logs in /var/crash/*pipewire* you could share?
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https://bugs.launchpad.net/bugs/2142428
Title:
pipewire-pulse.service crashes with signal=SYS on Ubuntu 26.04
(Resolute) – No audio, “Not connected to PulseAudio server”
Status in pipewire package in Ubuntu:
Confirmed
Bug description:
System:
Ubuntu 26.04 (Resolute Raccoon - development branch)
Kernel: 6.19.0-6-generic
Laptop: Dell XPS 15 9510
Issue:
Audio is not working. The system tray shows:
“Not connected to PulseAudio server”.
pipewire.service and wireplumber.service are running normally.
However, pipewire-pulse.service crashes immediately with:
Active: failed (Result: core-dump)
signal=SYS
Systemd shows:
pipewire-pulse.service: Failed with result 'core-dump'
Start request repeated too quickly.
Because pipewire-pulse is not running, no audio devices are available.
This appears to be a regression in Ubuntu 26.04 development branch.
systemctl --user status pipewire → running
systemctl --user status wireplumber → running
systemctl --user status pipewire-pulse → core-dump (signal=SYS)
1) sunny@sunny-XPS-15-9510:~$ systemctl --user status pipewire
● pipewire.service - PipeWire Multimedia Service
Loaded: loaded (/usr/lib/systemd/user/pipewire.service; enabled; preset:
enabled)
Active: active (running) since Mon 2026-02-23 09:25:00 IST; 31min ago
Invocation: ed405918e4764f7cab8e8423ab0858c8
TriggeredBy: ● pipewire.socket
Main PID: 4214 (pipewire)
Tasks: 3 (limit: 34631)
Memory: 7.6M (peak: 10.8M)
CPU: 289ms
CGroup:
/user.slice/user-1000.slice/[email protected]/session.slice/pipewire.service
└─4214 /usr/bin/pipewire
Feb 23 09:25:00 sunny-XPS-15-9510 systemd[4182]: Started pipewire.service -
PipeWire Multimedia Service.
sunny@sunny-XPS-15-9510:~$
2) sunny@sunny-XPS-15-9510:~$ systemctl --user status wireplumber
● wireplumber.service - Multimedia Service Session Manager
Loaded: loaded (/usr/lib/systemd/user/wireplumber.service; enabled;
preset: enabled)
Active: active (running) since Mon 2026-02-23 09:25:00 IST; 31min ago
Invocation: decaefb1bedf4e20a43ada3b30f1d9ce
Main PID: 4228 (wireplumber)
Tasks: 6 (limit: 34631)
Memory: 29.8M (peak: 31M)
CPU: 184ms
CGroup:
/user.slice/user-1000.slice/[email protected]/session.slice/wireplumber.service
└─4228 /usr/bin/wireplumber
Feb 23 09:25:00 sunny-XPS-15-9510 systemd[4182]: Started wireplumber.service
- Multimedia Service Session Manager.
Feb 23 09:25:01 sunny-XPS-15-9510 wireplumber[4228]: wp-device: SPA handle
'api.libcamera.enum.manager' could not be loaded; is it installed?
Feb 23 09:25:01 sunny-XPS-15-9510 wireplumber[4228]: s-monitors-libcamera:
PipeWire's libcamera SPA plugin is missing or broken. Some camera types may not
be supported.
sunny@sunny-XPS-15-9510:~$
3) sunny@sunny-XPS-15-9510:~$ systemctl --user status pipewire-pulse
× pipewire-pulse.service - PipeWire PulseAudio
Loaded: loaded (/usr/lib/systemd/user/pipewire-pulse.service; enabled;
preset: enabled)
Active: failed (Result: core-dump) since Mon 2026-02-23 09:31:56 IST;
26min ago
Duration: 1.126s
Invocation: 0345c4c831d44691a02963d7cbef80bc
TriggeredBy: × pipewire-pulse.socket
Process: 27725 ExecStart=/usr/bin/pipewire-pulse (code=dumped, signal=SYS)
Main PID: 27725 (code=dumped, signal=SYS)
Mem peak: 2.5M
CPU: 16ms
Feb 23 09:31:56 sunny-XPS-15-9510 systemd[4182]: pipewire-pulse.service:
Failed with result 'core-dump'.
Feb 23 09:31:56 sunny-XPS-15-9510 systemd[4182]: pipewire-pulse.service:
Scheduled restart job, restart counter is at 7.
Feb 23 09:31:56 sunny-XPS-15-9510 systemd[4182]: pipewire-pulse.service:
Start request repeated too quickly.
Feb 23 09:31:56 sunny-XPS-15-9510 systemd[4182]: pipewire-pulse.service:
Failed with result 'core-dump'.
Feb 23 09:31:56 sunny-XPS-15-9510 systemd[4182]: Failed to start
pipewire-pulse.service - PipeWire PulseAudio.
sunny@sunny-XPS-15-9510:~$
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: pipewire-pulse 1.5.84-1ubuntu2
ProcVersionSignature: Ubuntu 6.19.0-6.6-generic 6.19.2
Uname: Linux 6.19.0-6-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: sunny 4228 F.... wireplumber
/dev/snd/seq: sunny 4214 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Mon Feb 23 10:01:29 2026
InstallationDate: Installed on 2021-12-06 (1540 days ago)
InstallationMedia: Xubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
MachineType: Dell Inc. XPS 15 9510
PactlListSinks:
Error: command ['pactl', 'list', 'sinks'] failed with exit code 1: Connection
failure: Connection refused
pa_context_connect() failed: Connection refused
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: pipewire
UpgradeStatus: Upgraded to resolute on 2026-01-12 (42 days ago)
dmi.bios.date: 12/02/2025
dmi.bios.release: 1.44
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.44.1
dmi.board.name: 01V4T3
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.44.1:bd12/02/2025:br1.44:svnDellInc.:pnXPS159510:pvr:rvnDellInc.:rn01V4T3:rvrA00:cvnDellInc.:ct10:cvr:sku0A61:
dmi.product.family: XPS
dmi.product.name: XPS 15 9510
dmi.product.sku: 0A61
dmi.sys.vendor: Dell Inc.
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** Attachment added: "pipewire_crash.tar.gz"
https://bugs.launchpad.net/bugs/2142428/+attachment/5948249/+files/pipewire_crash.tar.gz
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https://bugs.launchpad.net/bugs/2142428
Title:
pipewire-pulse crashes when snap clients connect because libapparmor
5.0's new lsm_get_self_attr syscall is blocked by the service's
seccomp filter
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