[SOLVED] Audio has been lost on Slackware 13.0 32-bit

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[SOLVED] Audio has been lost on Slackware 13.0 32-bit

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Old

02-21-2010, 02:05 PM

#1

Tim Johnson

Member

Registered: Oct 2004

Location: Palmer, Alaska

Distribution: ubuntu 10.04, Slack 13.0/32-bit

Posts: 206

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Audio has been lost on Slackware 13.0 32-bit

Using Xfce 4.6.1
reference:
http://www.linuxquestions.org/questi...k-13.0-783056/
Audio worked fine until I rebooted.
Now, no audio at all.
I have run alsaconf, then alsamixer and lastly alsactl store
All applications ran without any indication of error and all indication
of success.

Still no audio. When I attempt to run mixer (as user) from the XFCE menu,
I get the following error popup:

Quote:

GStreamer was unable to detect any sound devices. Some sound system specific GStreamer packages may be missing. It may also be a permissions problem.

and mixer fails to load.
If I attempt to run mixer from a console emulator, I get nothin
as user.
If I attempt to run mixer as root, I get this:

Quote:

<unknown program name>(13822)/: KUniqueApplication: Cannot find the D-Bus session server

<unknown program name>(13821)/: KUniqueApplication: Pipe closed unexpectedly.

Please advise.
thanks
tim

02-22-2010, 12:42 AM	#2
meetscott Samhain Slackbuild Maintainer Registered: Sep 2004 Location: Phoenix, AZ, USA Distribution: Slackware Posts: 411 Rep:	Check that the user you are logging in as is in the audio group. Type "groups" on the command line to make sure "audio" shows up. If the sound doesn't work as root, then it is something else. Don't rule out file system corruption due to bad disks and the like. You may end up having to reinstall those packages. I've had some weird unexplained stuff happen to me that turned out to be hard disk errors. Kernel modules might not be loading. Lastly, your sound card may have gone bad or needs to be reseated on the motherboard. I've had this too. And it was no end of trouble getting that one figured out. I say some of these less likely things because it sounds like you've done your due diligence on the standard stuff. Hope this helps.

Old

02-22-2010, 10:35 AM

#3

Tim Johnson

Member

Registered: Oct 2004

Location: Palmer, Alaska

Distribution: ubuntu 10.04, Slack 13.0/32-bit

Posts: 206

Original Poster

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Quote:

Originally Posted by meetscott

View Post

Check that the user you are logging in as is in the audio group. Type "groups" on the command line to make sure "audio" shows up. If the sound doesn't work as root, then it is something else.

Audio is there as a group.

Quote:

Originally Posted by meetscott

View Post

Don't rule out file system corruption due to bad disks and the like. You may end up having to reinstall those packages. I've had some weird unexplained stuff happen to me that turned out to be hard disk errors.

How would I reinstall packages (pointers to docs and relevant discussions)?

Quote:

Originally Posted by meetscott

View Post

Kernel modules might not be loading.

And how to I check which modules have loaded?

Quote:

Originally Posted by meetscott

View Post

Lastly, your sound card may have gone bad or needs to be reseated on the motherboard. I've had this too. And it was no end of trouble getting that one figured out.

There should also be a way to test the card directly?
(I suspect the OS, not the hardware, but I am a hardware dunce)

Quote:

Originally Posted by meetscott

View Post

I say some of these less likely things because it sounds like you've done your due diligence on the standard stuff.

Hope this helps.

Well, this is a highly annoying happenstance but the analysis should thoroughly re-acquaint me with slack - I've returned
after some years ....
thanks very much.
tim

02-22-2010, 11:15 AM	#4
hughetorrance Member Registered: Aug 2009 Location: London North West Distribution: x86_64 Slack 13.37 current : +others Posts: 459 Rep:	Use a live distro to check your hardware and effect repairs... your favourite one thats all singing and dancing and you know works great on that box...

Old

02-22-2010, 12:05 PM

#5

dive

Senior Member

Registered: Aug 2003

Location: UK

Distribution: Slackware

Posts: 3,467

Rep:

Reputation: Disabled

Quote:

How would I reinstall packages (pointers to docs and relevant discussions)?

I would think it unlikely that you would need to do this but try out slackpkg just in case.

Quote:

And how to I check which modules have loaded?

'lsmod | grep snd'

Quote:

There should also be a way to test the card directly?
(I suspect the OS, not the hardware, but I am a hardware dunce)

Rather than rely on gstreamer try to play a wav with 'aplay' and report errors here. You might also 'echo [somerandomcharacters] > /dev/dsp' and see if the speakers click.
[/QUOTE]

1 members found this post helpful.

Old

02-22-2010, 12:50 PM

#6

Tim Johnson

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Quote:

Originally Posted by dive

View Post

I would think it unlikely that you would need to do this but try out slackpkg just in case.

'lsmod | grep snd'

Output follows:

Code:

tim@bart:~$ lsmod | grep snd
snd_seq_dummy           2464  0
snd_seq_oss            29792  0
snd_seq_midi_event      5980  1 snd_seq_oss
snd_seq                47984  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          6088  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            37728  0
snd_mixer_oss          14300  1 snd_pcm_oss
snd_hda_codec_realtek   188544  1
snd_hda_intel          23624  0
snd_hda_codec          53788  2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep               6816  1 snd_hda_codec
snd_pcm                68128  3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer              19108  2 snd_seq,snd_pcm
snd                    50820  11 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               5824  1 snd
snd_page_alloc          7972  2 snd_hda_intel,snd_pcm

Quote:

Originally Posted by dive

View Post

Rather than rely on gstreamer try to play a wav with 'aplay' and report errors here. You might also 'echo [somerandomcharacters] > /dev/dsp' and see if the speakers click.

Done as user `tim', permission is denied with no further messages.
Done as root, I definitely get clicks. So sound card is working?
Some permissions have gone awry?
Thank you.

Old

02-22-2010, 12:52 PM

#7

dugan

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Location: Canada

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Quote:

Originally Posted by Tim Johnson

View Post

How would I reinstall packages

upgradepkg --reinstall followed by the filename of the package.

Old

02-22-2010, 01:13 PM

#8

dive

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Location: UK

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Quote:

Originally Posted by Tim Johnson

View Post

Done as user `tim', permission is denied with no further messages.
Done as root, I definitely get clicks. So sound card is working?
Some permissions have gone awry?
Thank you.

what is output if 'ls -l /dev/dsp'?

Old

02-22-2010, 01:36 PM

#9

Tim Johnson

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Quote:

Originally Posted by dive

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what is output if 'ls -l /dev/dsp'?

Code:

crw-rw---- 1 root audio 14, 3 2010-02-22 07:17 /dev/dsp

Same (as far as I can see) whether user or root.

02-22-2010, 01:49 PM	#10
dive Senior Member Registered: Aug 2003 Location: UK Distribution: Slackware Posts: 3,467 Rep:	Permissions are ok. Have you recently added yourself to audio group? If so you need to logout of X, all consoles, then log back in again. You might also want to try running '/etc/rc.d/rc.messagebus reload'

Old

02-22-2010, 02:45 PM

#11

Tim Johnson

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Location: Palmer, Alaska

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Quote:

Originally Posted by dive

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Permissions are ok.

Have you recently added yourself to audio group? If so you need to logout of X, all consoles, then log back in again.

I have not. It appears that root is the only member of that group.

Quote:

Originally Posted by dive

View Post

You might also want to try running '/etc/rc.d/rc.messagebus reload'

I did, and the only response was:

Code:

Reloading system message bus configuration...

I.E. not obvious error messages.
Now when I invoke 'kmix' as user from a console I get a blank window,
but not the error message. Same errors tho' when invoked as root
or from the XFCE menu.

Old

02-22-2010, 03:04 PM

#12

dive

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Quote:

Originally Posted by Tim Johnson

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I have not. It appears that root is the only member of that group.

Add your user to audio with 'gpasswd -a tim audio' as root and see if it helps. You will probably need to log out and in again as I mentioned above.

1 members found this post helpful.

Old

02-22-2010, 04:15 PM

#13

Tim Johnson

Member

Registered: Oct 2004

Location: Palmer, Alaska

Distribution: ubuntu 10.04, Slack 13.0/32-bit

Posts: 206

Original Poster

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Quote:

Originally Posted by dive

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Add your user to audio with 'gpasswd -a tim audio' as root and see if it helps. You will probably need to log out and in again as I mentioned above.

Done. And rebooted. And solved.
Do you have any idea what may have caused this?
thanks

02-22-2010, 04:58 PM	#14
dive Senior Member Registered: Aug 2003 Location: UK Distribution: Slackware Posts: 3,467 Rep:	Not really, but I think you should probably check your 'groups' command as tim to see if any others are amiss. It's useful to be in these: users tty floppy audio video cdrom plugdev power netdev scanner You can add single groups with gpasswd or all supplimentary groups at once with usermod.
	1 members found this post helpful.

Old

02-22-2010, 05:22 PM

#15

Tim Johnson

Member

Registered: Oct 2004

Location: Palmer, Alaska

Distribution: ubuntu 10.04, Slack 13.0/32-bit

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Quote:

Originally Posted by dive

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Not really, but I think you should probably check your 'groups' command as tim to see if any others are amiss. It's useful to be in these:

users tty floppy audio video cdrom plugdev power netdev scanner

You can add single groups with gpasswd or all supplimentary groups at once with usermod.

Understood. Will do. Thanks again.
tim

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