Ubuntu
linux-rt package

no sound ubuntu studio karmic

Bug #394282 reported by Susan Cragin on 2009-07-01

10

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	linux-rt (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

I installed Ubuntu Studio on 6/30 from the daily build, did all updates including 2.6.29.5-1-rt kernel, and then followed the instructions to remove pulseaudio, to wit:

sudo apt-get purge remove pulseaudio
sudo apt-get install esound

I have no sound.

I have raised volume in alsamixer. I have also raised volume using the Gnome Volume Control.

under Sound problems I have tried the following suggestion:

sudo apt-get --purge remove linux-sound-base alsa-base alsa-utils
sudo apt-get install linux-sound-base alsa-base alsa-utils
reboot

That did not work.

I cannot re-install pulseaudio because the only sound program I have doesn't work with it.

ProblemType: Bug
Architecture: i386
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp1', '/dev/dsp', '/dev/snd/by-id', '/dev/snd/controlC1', '/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D0c', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D6p', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D6c', '/dev/snd/seq', '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit code 1:
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfebf8000 irq 22'
   Mixer name : 'Realtek ALC660-VD'
   Components : 'HDA:10ec0660,10431339,00100001 HDA:10573055,10431316,00100700'
   Controls : 23
   Simple ctrls : 15
Card1.Amixer.info:
Card hw:1 'system'/'Griffin Technology, Inc iMic USB audio system at usb-0000:00:1d.0-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB077d:07af'
   Controls : 8
   Simple ctrls : 6
Date: Wed Jul 1 09:11:57 2009
DistroRelease: Ubuntu 9.10
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Uname: Linux 2.6.29.5-1-rt i686

Tags:

Related branches

lp:ubuntu/karmic/linux-rt

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-01:

#1

AlsaDevices.txt Edit (705 bytes, text/plain; charset="utf-8")
AplayDevices.txt Edit (394 bytes, text/plain; charset="utf-8")
ArecordDevices.txt Edit (393 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (54.0 KiB, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (2.9 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (8.4 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.1.txt Edit (128 bytes, text/plain; charset="utf-8")
Card1.Amixer.values.txt Edit (997 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (1.7 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.2 KiB, text/plain; charset="utf-8")
PciMultimedia.txt Edit (510 bytes, text/plain; charset="utf-8")

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-01:

#2

When running winecfg I get the following error:

err:alsa:ALSA_CheckSetVolume Could not find 'PCM Playback Volume' element

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-01:

#3

I have found another problem, or perhaps a cause.
Gnome volume control does not work at all. I tried opening and setting it up, but the settings do not actually change.
Every time I re-open it, recording is on "mute."
When I run alsamixer instead, the recording level has sometimes dropped to zero.
Setting it higher does not work, even when I leave both applications open, and turn up the volume.

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-01:

#4

When I run Audacity and try to record, the volume meter goes up and down, but the audio track line stays flat, and nothing is actually recorded.

Revision history for this message

Vikram Dhillon (dhillon-v10) wrote on 2009-07-01: Re: [Bug 394282] Re: no sound ubuntu studio karmic

#5

Susan Cragin wrote:
> When I run Audacity and try to record, the volume meter goes up and
> down, but the audio track line stays flat, and nothing is actually
> recorded.
>
>
Go to the terminal and type in alsamixer and see if you get some bars on
the terminal showing your outout

If that doesn't work then go to system - preferences - and change all
the devices to autodetect other than sound capture if you have one...

Hope this helps

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-01:

#6

Vikram -- thanks for advice, nothing helps.
alsamixer -c0
alsamixer -c1
alsamixer -c2
all show high levels of recorded input, in a range in at least the sixties.
System / preferences all at autodetect.

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-02:

#7

I re-installed the system today including pulseaudio. Tried to run audacity with and without pulseaudio, and tried to use wine.
I have VERY WEAK incoming sound using pulseaudio only.
user.log gives this:
Jul 2 07:10:30 ubuntu pulseaudio[3614]: alsa-source.c: ALSA woke us up to read new data from the device, but there was actually nothing to read!
Jul 2 07:10:30 ubuntu pulseaudio[3614]: alsa-source.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers.
Jul 2 07:10:30 ubuntu pulseaudio[3614]: alsa-source.c: We were woken up with POLLIN set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.
Jul 2 07:41:10 ubuntu pulseaudio[3614]: asyncq.c: q overrun, queuing locally
Jul 2 07:41:10 ubuntu last message repeated 10 times

Revision history for this message

Susan Cragin (susancragin) wrote on 2009-07-03:

#8

I finally got everything to work.
Here's the recipe.

sudo apt-get --purge remove linux-sound-base alsa-base alsa-utils alsa-source pulseaudio
sudo apt-get install build-essential linux-headers-$(uname -r) module-assistant alsa-source
sudo dpkg-reconfigure alsa-source
sudo module-assistant a-i alsa-source
reboot

Works.
This leads me to suspect that there is some small inconsistency in code between the current rt kernel and alsa, or that the upgrade to the current rt kernel was not handled properly.

If no one else says that this bug bothered them, or if some time elapses, this bug should be closed out.

Revision history for this message

Luke Yelavich (themuso) wrote on 2009-07-06:

#9

I backported the alsa code from 2.6.31-rc1 to the 2.6.29.5 RT kernel. Please let me know if you have any problems.

affects:	alsa-driver (Ubuntu) → linux-rt (Ubuntu)
Changed in linux-rt (Ubuntu):
status:	New → Fix Released

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