Public bug reported:
Binary package hint: linux-image-2.6.35-22-generic
Since the upgrade to Ubuntu 10.10, I am encountering "stuttering" sound
playback every few minutes. It sounds like it plays some "time slices"
in the wrong order. Some slices (words, beats, etc.) are repeated,
others are dropped, and everything is mixed. This lasts for about 5
seconds, after which it continues normally.
Apparently, the sound card driver has undergone some changes since
2.6.32 and one of them may have caused this error.
When I start the 2.6.32 kernel remaining from the 10.04 installation,
everything is OK, so I'm pretty sure it's a kernel issue.
I usually play sound using mplayer, but increasing the cache size (the
usual suspect) doesn't help anything. PulseAudio probably "amplifies"
the effect. If I apply the option "-ao alsa" to mplayer, I still here
some "clicks", but they don't last 5 seconds.
The bad news is that I cannot really reproduce the problem: when playing
the same song several times, the problem sometimes occurs, sometimes
does not, but it never occurs in the same position of the song.
I'd be grateful for suggestions how to collect further information.
Everything above is merely based on memory and not from "scientific"
experiments.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: pulseaudio 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu21.1
ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: soeren 1589 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfe9f4000 irq 46'
Mixer name : 'VIA VT1708S'
Components : 'HDA:11060397,10431111,00100000'
Controls : 20
Simple ctrls : 13
Date: Wed Oct 20 21:22:07 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
LANG=de_DE.utf8
SHELL=/bin/bash
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: pulseaudio
Symptom: audio
Title: [VIA VT1708S] PA test tone failed (alsa tone succeeded)
dmi.bios.date: 12/04/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 203
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: P50IJ
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.:bvr203:bd12/04/2009:svnASUSTeKComputerInc.:pnP50IJ:pvr1.0:rvnASUSTeKComputerInc.:rnP50IJ:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: P50IJ
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick
--
[Intel HDA] Occasional "stuttering" with Linux kernel 2.6.35
https://bugs.launchpad.net/bugs/664138
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