On a fresh install of Kubuntu 22.04, when I turn my properly paired bluetooth headphones on they automatically connect to the system, then immediately disconnect again. The headphones thus have to be manually 're-connected' every time.
Best as I understand it from the logs (appended below), pulseaudio showing up killed just after the headphones turn up as an unregistered sender ...
4/30/22 7:33 PM systemd pulseaudio.service: Main process exited, code=killed, status=8/FPE
... is responsible for the observed problem, i.e. the disconnect, probably triggered when pulseaudio restarts ...
4/30/22 7:33 PM systemd pulseaudio.service: Scheduled restart job, restart counter is at 2.
So it seems either an internal pulseaudio problem, or a problem triggered by the division by 0 in the bluetooth module ...
4/30/22 7:33 PM kernel traps: bluetooth[8884] trap divide error ip:7f862dc68490 sp:7f862498cc30 error:0 in module-bluez5-device.so[7f862dc66000+9000]
or some combination of the two ... but again, I'm only guessing here.
On a fresh install of Kubuntu 22.04, when I turn my properly paired bluetooth headphones on they automatically connect to the system, then immediately disconnect again. The headphones thus have to be manually 're-connected' every time.
Best as I understand it from the logs (appended below), pulseaudio showing up killed just after the headphones turn up as an unregistered sender ...
4/30/22 7:33 PM systemd pulseaudio.service: Main process exited, code=killed, status=8/FPE
... is responsible for the observed problem, i.e. the disconnect, probably triggered when pulseaudio restarts ...
4/30/22 7:33 PM systemd pulseaudio.service: Scheduled restart job, restart counter is at 2.
So it seems either an internal pulseaudio problem, or a problem triggered by the division by 0 in the bluetooth module ... bluez5- device. so[7f862dc66000 +9000]
4/30/22 7:33 PM kernel traps: bluetooth[8884] trap divide error ip:7f862dc68490 sp:7f862498cc30 error:0 in module-
or some combination of the two ... but again, I'm only guessing here.
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System Logs after switching headphones on:
4/30/22 7:33 PM kernel input: Nat's Flex (AVRCP) as /devices/ virtual/ input/input31 hci0/dev_ A8_91_3D_ DF_A8_F4/ fd3: fd(43) ready bluez5- device. so[7f862dc66000 +9000] oint/A2DPSink/ sbc oint/A2DPSource /sbc oint/A2DPSink/ sbc_xq_ 453 oint/A2DPSource /sbc_xq_ 453 oint/A2DPSink/ sbc_xq_ 512 oint/A2DPSource /sbc_xq_ 512 oint/A2DPSink/ sbc_xq_ 552 oint/A2DPSource /sbc_xq_ 552 BatteryProvider Manager1. RegisterBattery Provider( ), is bluetoothd started with experimental features enabled (-E flag)? oint/A2DPSink/ sbc oint/A2DPSource /sbc oint/A2DPSink/ sbc_xq_ 453 oint/A2DPSource /sbc_xq_ 453 oint/A2DPSink/ sbc_xq_ 512 oint/A2DPSource /sbc_xq_ 512 oint/A2DPSink/ sbc_xq_ 552 oint/A2DPSource /sbc_xq_ 552
4/30/22 7:33 PM systemd-logind Watching system buttons on /dev/input/event19 (Nat's Flex (AVRCP))
4/30/22 7:33 PM bluetoothd /org/bluez/
4/30/22 7:33 PM rtkit-daemon Supervising 0 threads of 0 processes of 0 users.
4/30/22 7:33 PM rtkit-daemon Successfully made thread 8884 of process 3426 owned by '1000' RT at priority 5.
4/30/22 7:33 PM rtkit-daemon Supervising 1 threads of 1 processes of 1 users.
4/30/22 7:33 PM kernel traps: bluetooth[8884] trap divide error ip:7f862dc68490 sp:7f862498cc30 error:0 in module-
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM systemd pulseaudio.service: Main process exited, code=killed, status=8/FPE
4/30/22 7:33 PM bluetoothd Endpoint unregistered: sender=:1.126 path=/MediaEndp
4/30/22 7:33 PM systemd pulseaudio.service: Failed with result 'signal'.
4/30/22 7:33 PM systemd pulseaudio.service: Consumed 2min 20.027s CPU time.
4/30/22 7:33 PM acpid input device has been disconnected, fd 20
4/30/22 7:33 PM systemd pulseaudio.service: Scheduled restart job, restart counter is at 2.
4/30/22 7:33 PM systemd Stopped Sound Service.
4/30/22 7:33 PM systemd pulseaudio.service: Consumed 2min 20.027s CPU time.
4/30/22 7:33 PM systemd Starting Sound Service...
4/30/22 7:33 PM rtkit-daemon Successfully made thread 8889 of process 8889 owned by '1000' high priority at nice level -11.
4/30/22 7:33 PM rtkit-daemon Supervising 1 threads of 1 processes of 1 users.
4/30/22 7:33 PM pulseaudio Stale PID file, overwriting.
4/30/22 7:33 PM rtkit-daemon Supervising 1 threads of 1 processes of 1 users.
4/30/22 7:33 PM rtkit-daemon Successfully made thread 8890 of process 8889 owned by '1000' RT at priority 5.
4/30/22 7:33 PM rtkit-daemon Supervising 2 threads of 1 processes of 1 users.
4/30/22 7:33 PM rtkit-daemon Supervising 2 threads of 1 processes of 1 users.
4/30/22 7:33 PM rtkit-daemon Successfully made thread 8891 of process 8889 owned by '1000' RT at priority 5.
4/30/22 7:33 PM rtkit-daemon Supervising 3 threads of 1 processes of 1 users.
4/30/22 7:33 PM systemd Started Sound Service.
4/30/22 7:33 PM pulseaudio Could not find org.bluez.
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
4/30/22 7:33 PM bluetoothd Endpoint registered: sender=:1.246 path=/MediaEndp
ProblemType: Bug 1+dfsg1- 1ubuntu1 ature: Ubuntu 5.15.0- 27.28-generic 5.15.30 controlC0' , '/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/ pcmC0D10p' , '/dev/snd/ pcmC0D9p' , '/dev/snd/ pcmC0D8p' , '/dev/snd/ pcmC0D7p' , '/dev/snd/ pcmC0D3p' , '/dev/snd/ pcmC0D0c' , '/dev/snd/ pcmC0D0p' , '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: esult: unknown :bvr1.14. 0:bd03/ 25/2022: br1.14: svnDellInc. :pnXPS159500: pvr:rvnDellInc. :rn05XYW7: rvrA00: cvnDellInc. :ct10:cvr: sku097D: conffile. .etc.pulse. daemon. conf: [modified] .etc.pulse. daemon. conf: 2022-04- 29T21:03: 20.101513
DistroRelease: Ubuntu 22.04
Package: pulseaudio 1:15.99.
ProcVersionSign
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/
CasperMD5CheckR
CurrentDesktop: KDE
Date: Wed May 4 17:46:37 2022
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
SourcePackage: pulseaudio
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/25/2022
dmi.bios.release: 1.14
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.14.0
dmi.board.name: 05XYW7
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.family: XPS
dmi.product.name: XPS 15 9500
dmi.product.sku: 097D
dmi.sys.vendor: Dell Inc.
modified.
mtime.conffile.