Ubuntu
pulseaudio package

USB-Audio devices do not show up as input devices

Bug #536858 reported by Tormod Volden on 2010-03-10

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	pulseaudio (Ubuntu)	Invalid	Low	Unassigned

Bug Description

This is a webcam microphone, it shows up in the "Hardware" tab of Sound Preferences (and in "Configuration of pavucontrol) but not in the "Input" tab (or "Input Devices" in pavucontrol).

This is a regression since possibly a week or two.

ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tormod 1253 F.... pulseaudio
/dev/snd/pcmC0D0c: tormod 1253 F...m pulseaudio
/dev/snd/pcmC0D0p: tormod 1253 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xc8000000 irq 16'
   Mixer name : 'Realtek ALC880'
   Components : 'HDA:10ec0880,08800000,00090500 HDA:11c13026,11c13026,00100600'
   Controls : 40
   Simple ctrls : 24
Card1.Amixer.info:
Card hw:1 'U0x46d0x9a2'/'USB Device 0x46d:0x9a2 at usb-0000:00:1d.7-2, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:09a2'
   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 3072 [100%] [30.00dB] [on]
Date: Wed Mar 10 20:16:59 2010
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SelectedCard: 1 U0x46d0x9a2 USB-Audio - USB Device 0x46d:0x9a2
SourcePackage: alsa-driver
Symptom: audio
Title: [USB-Audio - USB Device 0x46d:0x9a2] Recording problem
Uname: Linux 2.6.32-16-generic i686
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: tormod 1220 F.... pulseaudio
/dev/snd/controlC0: tormod 1220 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xc8000000 irq 16'
   Mixer name : 'Realtek ALC880'
   Components : 'HDA:10ec0880,08800000,00090500 HDA:11c13026,11c13026,00100600'
   Controls : 40
   Simple ctrls : 24
Card1.Amixer.info:
Card hw:1 'U0x46d0x9a2'/'USB Device 0x46d:0x9a2 at usb-0000:00:1d.7-2, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:09a2'
   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 1887 [61%] [25.37dB] [on]
DistroRelease: Ubuntu 10.04
Package: alsa-driver (not installed)
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-15.22-generic
Tags: lucid
Uname: Linux 2.6.32-15-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

See original description

Tags:

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-10:

AlsaDevices.txt Edit (878 bytes, text/plain; charset="utf-8")
AplayDevices.txt Edit (385 bytes, text/plain; charset="utf-8")
ArecordDevices.txt Edit (536 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (44.7 KiB, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (4.4 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (9.4 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.1.txt Edit (140 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (2.0 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.3 KiB, text/plain; charset="utf-8")
PciMultimedia.txt Edit (633 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (540 bytes, text/plain; charset="utf-8")

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-10:

I tried with 2 other USB headset/soundcards and it is the same problem (0c76:1607 JMTek, LLC. and 0c45:184c Microdia VoIP Phone).

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-10:

Downgrading the kernel to 2.6.32-14.20-generic fixes the issue.

David Henningsson (diwic) on 2010-03-10

affects:

alsa-driver (Ubuntu) → linux (Ubuntu)

Tormod Volden (tormodvolden) on 2010-03-11

summary:	- [USB-Audio - USB Device 0x46d:0x9a2] does not show up as input device + USB-Audio devices do not show up as input devices
tags:	added: regression-potential

Revision history for this message

Chase Douglas (chasedouglas) wrote on 2010-03-11:

@Tormod:

Can you try the 2.6.32-15 kernel to see if it exhibits the incorrect behavior or not?

Changed in linux (Ubuntu):
importance:	Undecided → Low

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11:

2.6.32-15.22-generic works fine. This is kind of severe for me, since the built-in analog mic input does not work in Ubuntu.

For comparison I will rerun apport-collect using this kernel.

affects:	linux (Ubuntu) → alsa-driver (Ubuntu)
tags:	added: apport-collected
description:	updated

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: AlsaDevices.txt

AlsaDevices.txt Edit (878 bytes, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: AplayDevices.txt

AplayDevices.txt Edit (385 bytes, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: ArecordDevices.txt

ArecordDevices.txt Edit (536 bytes, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: BootDmesg.txt

BootDmesg.txt Edit (44.6 KiB, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: Card0.Amixer.values.txt

#10

Card0.Amixer.values.txt Edit (4.4 KiB, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: Card0.Codecs.codec.0.txt

#11

Card0.Codecs.codec.0.txt Edit (9.4 KiB, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: Card0.Codecs.codec.1.txt

#12

Card0.Codecs.codec.1.txt Edit (140 bytes, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: CurrentDmesg.txt

#13

CurrentDmesg.txt Edit (1.6 KiB, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: PciMultimedia.txt

#14

PciMultimedia.txt Edit (633 bytes, text/plain)

apport information

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11: ProcCpuinfo.txt

#15

ProcCpuinfo.txt Edit (541 bytes, text/plain)

apport information

affects:

alsa-driver (Ubuntu) → linux (Ubuntu)

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-11:

#16

Now everything is fine with -16. Go figure. There was a pulseaudio update in between, maybe it changed things to the better. I will reopen the bug if it appears again.

Changed in linux (Ubuntu):
status:	New → Invalid

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-13:

#17

Now the problem is back again, so maybe it is intermittent. But contrary to what I said earlier, the internal analog mic input works (again).

Changed in linux (Ubuntu):
status:	Invalid → New

Revision history for this message

Chase Douglas (chasedouglas) wrote on 2010-03-15:

#18

If the mic is working, what's the problem? Is it only working intermittently? Can you describe in detail what you mean by intermittent? Does it work or not work during a single boot, or does it come and go during a single session?

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-15:

#19

The analog *internal* mic input is working. That was a bit off-topic, it just makes the issue less severe for me. The USB audio comes and goes between reboots. Within a session (I will have to double-check for boot) it stays. I wonder how I can debug this. Comparing the alsa-info.sh debug output from a good/bad case I can not find any difference.

I thought it was a kernel problem since it coincided with kernel updates/downgrades but now I have seen it be both good and bad on the same -16 kernel, I think it might be pulseaudio.

Revision history for this message

Chase Douglas (chasedouglas) wrote on 2010-03-15:

#20

Since the mic is showing up in the "Hardware" tab of the pulseaudio controls, I'm also thinking this is a pulseaudio issue, and not a kernel issue.

affects:

linux (Ubuntu) → pulseaudio (Ubuntu)

Revision history for this message

Daniel T Chen (crimsun) wrote on 2010-03-15:

#21

Need a verbose PA log from a session where the device is unavailable in Input

Changed in pulseaudio (Ubuntu):
status:	New → Incomplete

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-03-15:

#22

It is apparently pulseaudio: Now it went bad after logging out and in again. But after stopping pulseaudio with -k and restarting with -vvvvv it was good again.

Revision history for this message

Pedro Villavicencio (pedro) wrote on 2010-08-24:

#23

could you provide the logs asked by Daniel ? thanks.

Revision history for this message

Tormod Volden (tormodvolden) wrote on 2010-08-25:

#24

I haven't seen this problem for a while, so I will close the bug.

Changed in pulseaudio (Ubuntu):
status:	Incomplete → Invalid

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Ubuntupulseaudio package

USB-Audio devices do not show up as input devices

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Ubuntu
pulseaudio package