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[Bug 1315212]

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Raymond <1315212@xxxxxxxxxxxxxxxxxx>
Date: Wed, 07 Jan 2015 01:12:21 -0000
Reply-to: Bug 1315212 <1315212@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
what is the smallest buffer size which aplay without underrun ? 1024,512,256,128,64,...


aplay -D front:CARD=CA0106 -v --buffer-size=1024 stereo48000.wav


19:29:42 homecomp pulseaudio[1911]: Protocol version: remote 26, local 29
Dec 25 19:29:42 homecomp pulseaudio[1911]: Got credentials: uid=1000 gid=1000 success=1
Dec 25 19:29:42 homecomp pulseaudio[1911]: SHM possible: yes
Dec 25 19:29:42 homecomp pulseaudio[1911]: Negotiated SHM: yes
Dec 25 19:29:42 homecomp pulseaudio[1911]: Looking for .desktop file for Transistor.bin.x86_64
Dec 25 19:29:42 homecomp pulseaudio[1911]: Not setting device for stream ALSA Playback, because it lacks role.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Negotiated format: pcm, format.sample_format = "\"s16le\""  format.rate = "48000"  format.channels = "2"  format.channel_map = "\"front-left,front-right\""
Dec 25 19:29:42 homecomp pulseaudio[1911]: Sink alsa_output.pci-0000_06_00.0.analog-stereo becomes busy, resuming.
Dec 25 19:29:42 homecomp pulseaudio[1911]: memblockq requested: maxlength=33554432, tlength=0, base=4, prebuf=0, minreq=1 maxrewind=0
Dec 25 19:29:42 homecomp pulseaudio[1911]: memblockq sanitized: maxlength=33554432, tlength=33554432, base=4, prebuf=0, minreq=4 maxrewind=0
Dec 25 19:29:42 homecomp pulseaudio[1911]: Created input 15 "ALSA Playback" on alsa_output.pci-0000_06_00.0.analog-stereo with sample spec s16le 2ch 48000Hz and channel map front-left,front-right
Dec 25 19:29:42 homecomp pulseaudio[1911]:     media.name = "ALSA Playback"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.name = "ALSA plug-in [Transistor.bin.x86_64]"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     native-protocol.peer = "UNIX socket client"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     native-protocol.version = "26"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.process.id = "9536"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.process.user = "rkfg"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.process.host = "homecomp"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.process.binary = "Transistor.bin.x86_64"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.language = "en_GB.UTF-8"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     window.x11.display = ":0.0"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.process.machine_id = "3be8f38f291dd2003af500d051c0a849"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     application.process.session_id = "10"
Dec 25 19:29:42 homecomp pulseaudio[1911]:     module-stream-restore.id = "sink-input-by-application-name:ALSA plug-in [Transistor.bin.x86_64]"
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested tlength=85.33 ms, minreq=21.33 ms
Dec 25 19:29:42 homecomp pulseaudio[1911]: Early requests mode enabled, configuring sink latency to minreq.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested latency=21.33 ms, Received latency=26.00 ms
Dec 25 19:29:42 homecomp pulseaudio[1911]: memblockq requested: maxlength=4194304, tlength=16384, base=4, prebuf=11396, minreq=4992 maxrewind=0
Dec 25 19:29:42 homecomp pulseaudio[1911]: memblockq sanitized: maxlength=4194304, tlength=16384, base=4, prebuf=11396, minreq=4992 maxrewind=0
Dec 25 19:29:42 homecomp pulseaudio[1911]: Final latency 111.33 ms = 33.33 ms + 2*26.00 ms + 26.00 ms
Dec 25 19:29:42 homecomp pulseaudio[1911]: Latency set to 26.00ms
Dec 25 19:29:42 homecomp pulseaudio[1911]: hwbuf_unused=60544
Dec 25 19:29:42 homecomp pulseaudio[1911]: setting avail_min=15617
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested volume: front-left: 52559 /  80% / -5.75 dB,   front-right: 52559 /  80% / -5.75 dB
Dec 25 19:29:42 homecomp pulseaudio[1911]: Got hardware volume: front-left: 53066 /  81% / -5.50 dB,   front-right: 53066 /  81% / -5.50 dB
Dec 25 19:29:42 homecomp pulseaudio[1911]: Calculated software volume: front-left: 64910 /  99% / -0.25 dB,   front-right: 64910 /  99% / -0.25 dB (accurate-enough=yes)
Dec 25 19:29:42 homecomp pulseaudio[1911]: Volume not changing
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requesting rewind due to end of underrun.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested to rewind 65536 bytes.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Limited to 3904 bytes.
Dec 25 19:29:42 homecomp pulseaudio[1911]: before: 976
Dec 25 19:29:42 homecomp pulseaudio[1911]: after: 976
Dec 25 19:29:42 homecomp pulseaudio[1911]: Rewound 3904 bytes.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Processing rewind...
Dec 25 19:29:42 homecomp pulseaudio[1911]: latency = 65877
Dec 25 19:29:42 homecomp pulseaudio[1911]: Have to rewind 3904 bytes on render memblockq.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Have to rewind 3904 bytes on render memblockq.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Have to rewind 3904 bytes on render memblockq.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Processing rewind...
Dec 25 19:29:42 homecomp pulseaudio[1911]: Wakeup from ALSA!
Dec 25 19:29:42 homecomp pulseaudio[1911]: Wakeup from ALSA!
Dec 25 19:29:42 homecomp pulseaudio[1911]: Wakeup from ALSA!
Dec 25 19:30:19 homecomp pulseaudio[1911]: Requesting rewind due to corking
Dec 25 19:30:19 homecomp pulseaudio[1911]: Requested to rewind 65536 bytes.
Dec 25 19:30:19 homecomp pulseaudio[1911]: Limited to 4544 bytes.
Dec 25 19:30:19 homecomp pulseaudio[1911]: before: 1136
Dec 25 19:30:19 homecomp pulseaudio[1911]: after: 1136
Dec 25 19:30:19 homecomp pulseaudio[1911]: Rewound 4544 bytes.
Dec 25 19:30:19 homecomp pulseaudio[1911]: Processing rewind...
Dec 25 19:30:19 homecomp pulseaudio[1911]: latency = 1234
Dec 25 19:30:19 homecomp pulseaudio[1911]: Have to rewind 4544 bytes on render memblockq.
Dec 25 19:30:19 homecomp pulseaudio[1911]: Have to rewind 4544 bytes on render memblockq.
Dec 25 19:30:19 homecomp pulseaudio[1911]: Have to rewind 4544 bytes on render memblockq.
Dec 25 19:30:19 homecomp pulseaudio[1911]: Have to rewind 4544 bytes on implementor.
Dec 25 19:30:19 homecomp pulseaudio[1911]: Processing rewind...
Dec 25 19:30:19 homecomp pulseaudio[1911]: Found underrun 4864 bytes ago (128 bytes ahead in playback buffer)
Dec 25 19:30:19 homecomp pulseaudio[1911]: Found underrun 4864 bytes ago (64 bytes ahead in playback buffer)
Dec 25 19:30:19 homecomp pulseaudio[1911]: Latency set to 26.00ms
Dec 25 19:30:19 homecomp pulseaudio[1911]: hwbuf_unused=60544
Dec 25 19:30:19 homecomp pulseaudio[1911]: setting avail_min=15617

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https://bugs.launchpad.net/bugs/1315212

Title:
  [CA0106 - CA0106, playback] Playback problem - Surround dies, no valid
  output

Status in ALSA driver:
  Confirmed
Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  This is tested against a Creative Labs Sounblaster live! (sb0410) card
  and a SoundBlaster Audigy se (sb0570). Both of them behave strangely,
  output coming through some, but not all speakers, etc. This was
  working in 13.10 under the sb0410. the ca0106 driver is the same for
  both cards.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic i686
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  joshp     30385 F.... pulseaudio
   /dev/snd/controlC0:  joshp     30385 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu May  1 21:37:12 2014
  InstallationDate: Installed on 2014-04-28 (3 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:CA0106 failed
  Symptom_Card: Built-in Audio - Intel ICH6
  Symptom_Type: None of the above
  Title: [CA0106 - CA0106, playback] Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/03/2006
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A08
  dmi.board.name: 0G8310
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA08:bd03/03/2006:svnDellInc.:pnOptiPlexGX280:pvr:rvnDellInc.:rn0G8310:rvr:cvnDellInc.:ct3:cvr:
  dmi.product.name: OptiPlex GX280
  dmi.sys.vendor: Dell Inc.

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