Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: pulseaudio (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/778852
Title:
Sound is distorted sometimes
Status in “pulseaudio” package in Ubuntu:
Confirmed
Bug description:
Binary package hint: pulseaudio
When I'm listening to rythmbox sometimes sound becomes distorted.
Sometimes it is distorted when I unpause playback, but if I pause and
unpause once more it becomes fine again.
I found pretty good way to reproduce though:
1) Have rythmbox playing.
2) Open video file in totem
3) Close totem
4) repeat 2-3
Always, when totem opens/closes I hear a small dropout in music. But
sometimes along with dropout distortion begins. And distortion finishes when I
open/close totem again. I.e. I open totem - just dropout, I close totem -
distortion begins, I open totem again - distortion disappears.
Distortion doesn't appear 100% of the time, but pretty often. Dropout can
be heard always.
This problem appeared after upgrade to Natty. Before this update I
never heard any distortion on this laptop.
Here is an alsa debug output when I start totem and distortion begins:
---------------------------------------------------------------------------------------
I: client.c: Created 19 "Native client (UNIX socket client)"
D: protocol-native.c: Protocol version: remote 16, local 16
I: protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
D: protocol-native.c: SHM possible: yes
D: protocol-native.c: Negotiated SHM: yes
D: module-augment-properties.c: Looking for .desktop file for totem
I: client.c: Freed 19 "Видеопроигрыватель Totem"
I: protocol-native.c: Connection died.
I: client.c: Created 20 "Native client (UNIX socket client)"
D: protocol-native.c: Protocol version: remote 16, local 16
I: protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
D: protocol-native.c: SHM possible: yes
D: protocol-native.c: Negotiated SHM: yes
D: module-augment-properties.c: Looking for .desktop file for totem
I: module-stream-restore.c: Restoring volume for sink input
sink-input-by-media-role:video.
I: module-stream-restore.c: Restoring mute state for sink input
sink-input-by-media-role:video.
D: module-suspend-on-idle.c: Sink alsa_output.default becomes busy.
D: memblockq.c: memblockq requested: maxlength=33554432, tlength=0, base=8,
prebuf=0, minreq=1 maxrewind=0
D: memblockq.c: memblockq sanitized: maxlength=33554432, tlength=33554432,
base=8, prebuf=0, minreq=8 maxrewind=0
I: sink-input.c: Created input 8 "Playback Stream" on alsa_output.default
with sample spec s32le 2ch 48000Hz and channel map front-left,front-right
I: sink-input.c: media.name = "Playback Stream"
I: sink-input.c: application.name = "Видеопроигрыватель Totem"
I: sink-input.c: native-protocol.peer = "UNIX socket client"
I: sink-input.c: native-protocol.version = "16"
I: sink-input.c: media.role = "video"
I: sink-input.c: application.process.id = "29881"
I: sink-input.c: application.process.user = "kolya"
I: sink-input.c: application.process.host = "kolya-laptop"
I: sink-input.c: application.process.binary = "totem"
I: sink-input.c: application.icon_name = "totem"
I: sink-input.c: window.x11.display = ":0.0"
I: sink-input.c: application.language = "ru_RU.UTF-8"
I: sink-input.c: application.process.machine_id =
"3e9af0d0cb0c30aa9ae927604bde08d5"
I: sink-input.c: application.process.session_id =
"3e9af0d0cb0c30aa9ae927604bde08d5-1304615509.920354-630699833"
I: sink-input.c: module-stream-restore.id =
"sink-input-by-media-role:video"
I: protocol-native.c: Requested tlength=200.00 ms, minreq=10.00 ms
D: protocol-native.c: Adjust latency mode enabled, configuring sink latency
to half of overall latency.
D: memblockq.c: memblockq requested: maxlength=4194304, tlength=42240,
base=8, prebuf=0, minreq=3840 maxrewind=0
D: memblockq.c: memblockq sanitized: maxlength=4194304, tlength=42240,
base=8, prebuf=0, minreq=3840 maxrewind=0
I: protocol-native.c: Final latency 200.00 ms = 90.00 ms + 2*10.00 ms + 90.00
ms
D: alsa-sink.c: Latency set to 90.00ms
D: alsa-sink.c: hwbuf_unused=96512
D: alsa-sink.c: setting avail_min=15425
D: protocol-native.c: Requesting rewind due to end of underrun.
D: protocol-native.c: Requesting rewind due to end of underrun.
D: protocol-native.c: Requesting rewind due to end of underrun.
D: protocol-native.c: Requesting rewind due to end of underrun.
D: protocol-native.c: Requesting rewind due to end of underrun.
D: protocol-native.c: Requesting rewind due to end of underrun.
D: protocol-native.c: Requesting rewind due to end of underrun.
D: sink-input.c: Requesting rewind due to uncorking
D: alsa-sink.c: Requested to rewind 131072 bytes.
D: module-suspend-on-idle.c: Sink alsa_output.default becomes busy.
D: alsa-sink.c: Limited to 32352 bytes.
D: alsa-sink.c: before: 4044
D: alsa-sink.c: after: 4044
D: alsa-sink.c: Rewound 32352 bytes.
D: sink.c: Processing rewind...
D: sink-input.c: Have to rewind 32352 bytes on render memblockq.
D: source.c: Processing rewind...
D: protocol-native.c: Requesting rewind due to end of underrun.
D: alsa-sink.c: Requested to rewind 131072 bytes.
D: alsa-sink.c: Limited to 32128 bytes.
D: alsa-sink.c: before: 4016
D: alsa-sink.c: after: 4016
D: alsa-sink.c: Rewound 32128 bytes.
D: sink.c: Processing rewind...
D: sink-input.c: Have to rewind 32128 bytes on render memblockq.
D: sink-input.c: Have to rewind 32128 bytes on render memblockq.
D: source.c: Processing rewind...
---------------------------------------------------------------------------------------
I'll be happy to provide any information I can to help resolve this issue.
Thanks.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: pulseaudio 1:0.9.22+stable-queue-24-g67d18-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kolya 22806 F.... pulseaudio
/dev/snd/pcmC0D0p: kolya 22806 F...m pulseaudio
/dev/snd/timer: kolya 22806 f.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 45'
Mixer name : 'SigmaTel STAC9200'
Components : 'HDA:83847690,102801bd,00102201
HDA:14f12bfa,14f100c3,00090000'
Controls : 12
Simple ctrls : 7
Date: Fri May 6 22:50:44 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
LANGUAGE=ru_RU:en
PATH=(custom, user)
LANG=ru_RU.UTF-8
SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to natty on 2011-04-30 (6 days ago)
dmi.bios.date: 06/13/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A17
dmi.board.name: 0XD720
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA17:bd06/13/2007:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0XD720:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: MM061
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.pulse.default.pa: 2011-05-06T12:21:54.526814
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