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Old 10-27-2007, 11:29 AM   #1
redss
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KDE causes conflict with soundcard?


I have a remastered compactflash version of knoppix 3.4

When I boot knoppix, my onboard soundcard (AC-97) is recognized and configured (using OSS, not ALSA). If I boot into single user mode, my soundcard is functional, since typing the following command at a prompt enables me to hear something:

cat file.au > /dev/dsp (also I can redirect to /dev/audio)

However, once booting into KDE 3.4, the soundcard is no longer accessable. typing the above command at a prompt returns "device or resource busy"

How can I keep KDE from causing a conflict with my soundcard?
 
Old 10-27-2007, 12:05 PM   #2
alunduil
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Does your kde try to use arts? If so see if disabling that and forcing it to use alsa is of any help.

Regards,

Alunduil
 
Old 10-27-2007, 12:13 PM   #3
redss
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Unfortunately ALSA is not implemented in this version of knoppix. However, I have used this version of knoppix with countless systems having various soundcards, and up till now it has always worked fine with the OSS drivers.
 
Old 10-27-2007, 12:15 PM   #4
alunduil
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So you're running from a liveCD or have an install of knoppix?

Regards,

Alunduil
 
Old 10-27-2007, 12:20 PM   #5
redss
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Its a liveCD of knoppix 3.4, which has been copied to a compactflash connected via a CF-IDE adaptor for faster access than CD.
 
Old 10-27-2007, 12:22 PM   #6
alunduil
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Perhaps it is time for a new live distribution? Slax is a very nice upcoming distribution.

Assuming though that you don't want to go through all of that trouble what sound card is on the box in question?

Regards,

Alunduil
 
Old 10-27-2007, 12:37 PM   #7
redss
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Thanks for you reply.

The soundchip is integrated on the motherboard, it is recognized as AC-97 upon bootup. Also I have heard the startup sound come from it when booting into KDE, so KDE is subsequently doing something to cause a conflict.
 
Old 10-27-2007, 12:39 PM   #8
alunduil
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Have you tried just turning off the kde sound system, or changing it to OSS and seeing if that works?

Regards,

Alunduil
 
Old 10-27-2007, 02:56 PM   #9
redss
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Found the problem. The fuser command revealed that 3 processes called ogg123 were trying to play the startup.ogg file. Kill -9 on the first process freed up the audio device. I wonder why that ogg123 process got hung?
 
  


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