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Kanotix Mute

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Tejas

Post subject: Kanotix Mute

Posted: Sep 18, 2011 - 03:03 PM

Joined: May 09, 2011
Posts: 74

Kanotix is supposed to detect h/w like sound cards and appropriately configure it or driver if I'm not mistaken. Mint does this and I have no problem playing the Gnome Media Player. However I've failed to get any sound out of it here.

Step 1 See if your soundcard is detected

Code:

$ cat /proc/asound/cards

 0 [NVidia         ]: HDA-Intel - HDA NVidia

                      HDA NVidia at 0xfe028000 irq 21

Presume sound card detected

Step 3 Play a file:

Code:

$ play /usr/share/sounds/KDE-Im-New-Mail.ogg

ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave

play FAIL formats: can't open output file `default': snd_pcm_open error: Device or resource busy

Step 4 Check all volumes are up and nothing is muted.

Code:

$ alsamixer

Not being a sound buff this is where I get lost Traurig

Only a Line Out to Speakers (No internal ones)

O/P of alsamixer attached:

alsamixer.png

Description:

O/P of alsamixer

Filesize:

89.39 KB

Viewed:

680578 Time(s)

TheOne

Post subject: Kanotix Mute

Posted: Sep 18, 2011 - 03:42 PM

Joined: Mar 15, 2008
Posts: 610

Try to increase volume of PCM and Master channel.

besenmuckel

Post subject: Kanotix Mute

Posted: Sep 18, 2011 - 10:18 PM

Joined: Mar 28, 2004
Posts: 1169
Location: Wolfenbuettel

sorry - no spreak english.
http://wiki.ubuntuusers.de/Soundkarten_ ... edirect=no

Quote:

zless /usr/share/doc/alsa-base/driver/HD-Audio-Models.txt.gz

Die unterstützten Audiocontroller sind auch alternativ auf der Dokumentationsseite des Linuxkernels auf kernel.org {en} nachzulesen. Mit diesen möglichen Modellnamen beginnt nun die Arbeit. Man teilt ALSA mit, welcher Chip-Typ verwendet werden soll. Dazu muss die Datei /etc/modprobe.d/alsa-base.conf in einem Editor mit Root-Rechten bearbeitet werden [3]. An das Ende dieser Datei wird - um bei obigem Beispiel (für andere siehe Tabelle unten) zu bleiben - folgende Zeile eingefügt:

options snd-hda-intel model=3stack

Nach dem Ändern der Datei kann der Rechner neu gestartet werden. ALSA erfährt dann beim Starten, welcher HDA-Typ angesprochen wird. Alternativ dazu kann mittels rmmod das snd_hda_intel-Kernelmodul entfernt werden und mittels modprobe snd-hda-intel model=xxx neu geladen werden. Parallel dazu kann in einem zweiten Fenster mittels tail -f /var/log/syslog die Kernelausgabe via syslog verfolgt werden, ob das korrekte Modell für die Soundkarte geladen wurde.

Falls es nicht funktionieren sollte, muss man sämtliche verschiedenen Modelle durchprobieren, bis man das passende gefunden hat. Eventuell ist kein Sound - trotz des richtigen Modellnamens - hörbar. Deshalb sollte man mittels Alsamixer die Einstellungen der Regler und Schalter der Soundkarte überprüfen.

_________________
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Kano

Post subject: Kanotix Mute

Posted: Sep 18, 2011 - 10:34 PM

Joined: Dec 17, 2003
Posts: 16812

Usally you need to increase front too.

Tejas

Post subject: RE: Kanotix Mute

Posted: Sep 20, 2011 - 08:17 PM

Joined: May 09, 2011
Posts: 74

besenmuckel wrote:

sorry - no spreak english.

No speaka da englisch? No problema Winken

http://wiki.ubuntuusers.de/Soundkarten_konfigurieren/HDA?redirect=no wrote:

Dazu muss die Datei /etc/modprobe.d/alsa-base.conf in einem Editor mit Root-Rechten bearbeitet werden [3]. An das Ende dieser Datei wird - um bei obigem Beispiel (für andere siehe Tabelle unten) zu bleiben - folgende Zeile eingefügt:

options snd-hda-intel model=3stack

Nach dem Ändern der Datei kann der Rechner neu gestartet werden. ALSA erfährt dann beim Starten, welcher HDA-Typ angesprochen wird.

Have followed this, but still problem persists. I tend to think it's something to do with thiis error:
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
play FAIL formats: can't open output file `default': snd_pcm_open error: Device or resource busy
Something seems to be either blocking access to or hogging the sound card. Kaffeine upon start-up comes up with the following:
Sorry - Kaffeine
Cannot create audio output
before crashing.

Thanks for the link and its related links which I am now having to wade through while waiting on more suggestions.

TheOne

Post subject: RE: Kanotix Mute

Posted: Sep 20, 2011 - 11:17 PM

Joined: Mar 15, 2008
Posts: 610

If some application blocks your sound device, you can see that via

Code:

lsof | grep snd

If some apps that should be closed still block your device, try to kill them (killall or kill).

Regards TheOne

besenmuckel

Post subject: RE: Kanotix Mute

Posted: Sep 21, 2011 - 12:38 AM

Joined: Mar 28, 2004
Posts: 1169
Location: Wolfenbuettel

Quote:

lsof | grep snd

Code:

lsof | grep pcm

for lsof

Code:

apt-get install lsof

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Tejas

Post subject: RE: Kanotix Mute

Posted: Sep 22, 2011 - 07:45 PM

Joined: May 09, 2011
Posts: 74

EPILOG ->

-> A Sound Mystery

To recap:

besenmuckel wrote:

for lsof

Code:

apt-get install lsof

Package already installed in both Mint and Kanotix distros.

TheOne wrote:

If some application blocks your sound device, you can see that via

Code:

lsof | grep snd

This produced a plethora of info, and I ended up not being able to see the wood for the trees and might have been in danger of killing an essential proces Traurig

besenmuckel wrote:

Code:

lsof | grep pcm

Thanx

Mint wrote:

mint@mint ~ $ lsof | grep pcm
pulseaudi 4642 mint mem CHR 116,3 13176 /dev/snd/pcmC0D0p
pulseaudi 4642 mint 36u CHR 116,3 0t0 13176 /dev/snd/pcmC0D0p
plugin-co 5013 mint mem REG 0,16 22076 19784 /usr/lib/alsa-lib/libasound_module_pcm_pulse.so

besenmuckel wrote:

http://wiki.ubuntuusers.de/Soundkarten_konfigurieren/HDA?redirect=no wrote:

Dazu muss die Datei /etc/modprobe.d/alsa-base.conf ... folgende Zeile eingefügt:

options snd-hda-intel model=3stack

Nach dem Ändern der Datei kann der Rechner neu gestartet werden. ALSA erfährt dann beim Starten, welcher HDA-Typ angesprochen wird.

After restarting the problem still persisted. Well since then there has been an intervening cold start.

On getting to desktop minimised all windows and ran

Code:

kanotix@Kanotix:~$ lsof | grep pcm

lsof: WARNING: can't stat() ext2 file system /isofrom

      Output information may be incomplete.

lsof: WARNING: can't stat() squashfs file system /filesystem.squashfs

      Output information may be incomplete.

lsof: WARNING: can't stat() ext2 file system /live-rw-backing

      Output information may be incomplete.

Possibly no one blocking sound access, so ran Kaffeine, which worked Ausrufezeichen

Following which ran

Code:

kanotix@Kanotix:~$ lsof | grep pcm

kaffeine- 3538    kanotix  mem       CHR      116,3             10697 /dev/snd/pcmC0D0p

kaffeine- 3538    kanotix   19u      CHR      116,3       0t0   10697 /dev/snd/pcmC0D0p

TheOne wrote:

Try to increase volume of PCM and Master channel.

Kano wrote:

Usally you need to increase front too.

With Kaffeine running, ran 'alsamixer' and was able to adjust contols and eliminate unnecessary ones -> ->

Ran Flash Video in Iceweasel

Code:

kanotix@Kanotix:~$ lsof | grep pcm

plugin-co 3715    kanotix  mem       CHR      116,3             10697 /dev/snd/pcmC0D0p

plugin-co 3715    kanotix   22u      CHR      116,3       0t0   10697 /dev/snd/pcmC0D0p

Played a sound

Code:

kanotix@Kanotix:~$ play /usr/share/sounds/KDE-Im-New-Mail.ogg

/usr/share/sounds/KDE-Im-New-Mail.ogg:

 File Size: 23.4k     Bit Rate: 181k

  Encoding: Vorbis        

  Channels: 2 @ 16-bit   

Samplerate: 48000Hz      

Replaygain: off         

  Duration: 00:00:01.03  

In:100%  00:00:01.03 [00:00:00.00] Out:49.7k [      |      ]        Clip:0    

Done.

Ran Gnome Media Player followed by a Sound

Code:

kanotix@Kanotix:~$ lsof | grep pcm

mplayer   4712    kanotix  mem       CHR      116,3             10697 /dev/snd/pcmC0D0p

mplayer   4712    kanotix    7w      CHR      116,3       0t0   10697 /dev/snd/pcmC0D0p

kanotix@Kanotix:~$ play /usr/share/sounds/KDE-Im-New-Mail.ogg

/usr/share/sounds/KDE-Im-New-Mail.ogg:

 File Size: 23.4k     Bit Rate: 181k

  Encoding: Vorbis        

  Channels: 2 @ 16-bit   

Samplerate: 48000Hz      

Replaygain: off         

  Duration: 00:00:01.03  

In:100%  00:00:01.03 [00:00:00.00] Out:49.7k [      |      ]        Clip:0    

Done.

Had gnome audio o/p set to 'pulse' but there was no sound until reset to 'alsa'
Checked sound file device

Code:

kanotix@Kanotix:~$ lsof | grep pcm

plugin-co 4739    kanotix  mem       CHR      116,3             10697 /dev/snd/pcmC0D0p

plugin-co 4739    kanotix   20u      CHR      116,3       0t0   10697 /dev/snd/pcmC0D0p

Flash Plugin seems to always grab the sound device file, but this time appears to have relinquished it to the active process. It is this same plugin plugin-co which had the sound device file before, when nothing was happening. So it remains a puzzle as to why this plugin now seems to be behaving properly. Frage

Attached file lists all processes on m/c., and maybe s.o. can spot one which could have been responsible for locking out processes from the sound device file.

ps-eU.gz

Description:

Running Processes

Download

Filename:

ps-eU.gz

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