Public bug reported:
I've been having problems with usb audio devices plugged into any of my ubuntu
machines. The audio works however the USB audio pops and clicks whenever the
processor gets busy (reduced but not gone when idle). Currently this affects
two of my usb audio devices that I am using (not in tandem).
Currently this affects my
ASTRO Gaming USB MixAmp
and my
TrendAudio USB Audio Converter UD-10.1
Shows up as a Texas Instruments Japan
manufactured by Burr-Brown from TI
I'm currently using Ubuntu 10.04 with all the default audio packages.
Stereo works on both but the popping and clicking makes it very annoying when
listening to anything
Things that make it worse:
Enabling effects with the nvidia driver (extreme levels of clicking)
Making the CPU busy
I suspect that this is a buffer under-run or interrupt related issue
however I am not exactly sure of the problem.
Attached is an verbose lsusb dump
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-24.42-generic-pae 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 21'
Mixer name : 'SigmaTel STAC9221 A1'
Components : 'HDA:83847680,102801d7,00103601
HDA:14f12bfa,14f100c3,00090000'
Controls : 24
Simple ctrls : 14
Card1.Amixer.info:
Card hw:1 'U0x46d0x8c6'/'USB Device 0x46d:0x8c6 at usb-0000:00:1d.7-5, high
speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:08c6'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 3072
Mono: Capture 0 [0%] [20.00dB] [on]
Card2.Amixer.info:
Card hw:2 'MixAmp'/'ETHER ELECTRONICS CO.,LTD. ASTRO Gaming USB MixAmp at
usb-0000:00:1d.3-2, full '
Mixer name : 'USB Mixer'
Components : 'USB0d8c:013c'
Controls : 4
Simple ctrls : 2
Date: Sat Sep 11 22:40:10 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
PackageArchitecture: all
ProcEnviron:
LANG=en_CA.UTF-8
SHELL=/bin/bash
SelectedCard: 2 MixAmp USB-Audio - ASTRO Gaming USB MixAmp
SourcePackage: alsa-driver
Symptom: audio
Title: [USB-Audio - ASTRO Gaming USB MixAmp] Playback problem
dmi.bios.date: 07/10/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0FP985
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA08:bd07/10/2007:svnDellInc.:pnMXC062:pvr:rvnDellInc.:rn0FP985:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: MXC062
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
--
[USB-Audio] Playback problem
https://bugs.launchpad.net/bugs/636173
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
