What happened to /dev/dsp in Ubuntu 10.10?

kline · 02-14-2011, 10:02 PM

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!

corp769 · 02-15-2011, 12:36 AM

Try this out:

Code:

modprobe snd-pcm-oss

DJ Shaji · 02-15-2011, 01:21 AM

Also,

Quote:

mknod /dev/dsp c 14 3

kline · 02-15-2011, 12:56 PM

Quote:

Originally Posted by kline

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.

shanx.shashank · 02-16-2011, 09:19 AM

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

kline · 02-16-2011, 01:19 PM

Quote:

Originally Posted by shanx.shashank

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.

corp769 · 02-16-2011, 03:32 PM

modprobe <module>

You should be good after loading all three, well that is if you need all three.

shanx.shashank · 02-17-2011, 07:32 AM

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