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Old 02-14-2011, 10:02 PM   #1
kline
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What happened to /dev/dsp in Ubuntu 10.10?


About a month ago, before upgrading to ubuntu 10.10, I ran a test program that produced a click whenever I pressed any key. I just tried to rebuild the program and find there is no /dev/dsp. Do I need to install/reinstall some files or what?

tia!
 
Old 02-15-2011, 12:36 AM   #2
corp769
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Try this out:

Code:
modprobe snd-pcm-oss
 
Old 02-15-2011, 01:21 AM   #3
DJ Shaji
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Also,
Quote:
mknod /dev/dsp c 14 3
 
Old 02-15-2011, 12:56 PM   #4
kline
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Question

Quote:
Originally Posted by kline View Post
About a month ago, before upgrading to ubuntu 10.10, I ran a test program that produced a click whenever I pressed any key. I just tried to rebuild the program and find there is no /dev/dsp. Do I need to install/reinstall some files or what?

tia!
For the record, I _did_ [BION], search for !/dev/dsp, and I found the previous results. What I don't get it how simply upgrading from 10.04 to 10.10 could have blown away the /dev/dsp in the device table. 'Sall.
 
Old 02-16-2011, 09:19 AM   #5
shanx.shashank
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Looks like you are using ALSA, without its OSS compatibility.

open the terminal and try the following command

Code:
$ aoss <program-name>
If it works, install the following modules:
snd-pcm-oss
snd-mixer-oss
snd-seq-oss

Now your program must work as it worked earlier, a restart may be required after installing modules.

Cheers!

Alsa wiki deals in detail with OSS - ALSA compatibility:
http://alsa.opensrc.org/OSS_emulation

Last edited by shanx.shashank; 02-16-2011 at 09:21 AM. Reason: Details you might be interested in
 
Old 02-16-2011, 01:19 PM   #6
kline
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Quote:
Originally Posted by shanx.shashank View Post
Looks like you are using ALSA, without its OSS compatibility.

open the terminal and try the following command

Code:
$ aoss <program-name>
If it works, install the following modules:
snd-pcm-oss
snd-mixer-oss
snd-seq-oss

Now your program must work as it worked earlier, a restart may be required after installing modules.

Cheers!

Alsa wiki deals in detail with OSS - ALSA compatibility:
http://alsa.opensrc.org/OSS_emulation
Ok, I did the following, which zero output.::

aoss< ./a.out , then I re-read your message and types

aoss ./a.out and _voila_ I heard my "click" [!]

How do I add the missing snd modules? I clicked on your URL but didn't get very far.
 
Old 02-16-2011, 03:32 PM   #7
corp769
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modprobe <module>

You should be good after loading all three, well that is if you need all three.
 
Old 02-17-2011, 07:32 AM   #8
shanx.shashank
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As corp769 mentioned, modprobe must to do the trick.

But it looks like this a bug in ubuntu 10.10 which will be resolved in next release (April of 2011) <- https://bugs.launchpad.net/ubuntu/+s...at/+bug/659024

So, yes we are stuck with aoss.

If you are able to find a fix for modprobing, please let us know.

Hope this helps.
shanx
 
  


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