Ubuntu

[Intel HDA] Occasional "stuttering" with Linux kernel 2.6.35

Reported by Soeren D. Schulze on 2010-10-20
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Unassigned

Bug Description

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.

Jeremy Foshee (jeremyfoshee) wrote :

Hi Soeren,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 664138

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: needs-kernel-logs
tags: added: needs-upstream-testing
tags: added: kj-triage
Changed in linux (Ubuntu):
status: New → Incomplete
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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