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Old 11-25-2002, 12:32 PM   #1
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Registered: Nov 2002
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Question device /dev/dsp can't be opened (No such device)

I have been strugling to get my sound card working in Redhat 8. It is a Avance AC'97 for VIA.

I have installed the ALSA drivers and can see them in the lsmod:

snd-via82xx 11628 0 (unused)
snd-pcm 82144 0 [snd-via82xx]
snd-timer 15368 0 [snd-pcm]
snd-mpu401-uart 4716 0 [snd-via82xx]
snd-rawmidi 18336 0 [snd-mpu401-uart]
snd-seq-device 6144 0 [snd-rawmidi]
snd-ac97-codec 35940 0 [snd-via82xx]
snd 39820 0 [snd-via82xx snd-pcm snd-timer snd-mpu401-uart snd-rawmidi snd-seq-device snd-ac97-codec]
soundcore 6500 0 (autoclean) [snd]

I am not sure if I have the modules.conf entry right:

alias char-major-116 snd

When I login on KDE i get the message "device /dev/dsp can't be opened (No such device)"

Any Ideas would be appreciated.
Old 11-25-2002, 03:10 PM   #2
Registered: Oct 2002
Location: Curitiba - Brazil
Distribution: Conectiva
Posts: 334

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It's possible that something (like arts) could be using your device but you can check if your device is still there with:

# ll /dev/dsp

If don't you can recreate it with:

# mknod /dev/dsp c 14 3

If the device exists, try to check who is using it with:

# ps aux | grep `fuser /dev/dsp`

Hope that helps...
Old 11-25-2002, 03:24 PM   #3
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1. /dev/dsp exists
2. fuser /dev/dsp returns null
Old 09-22-2006, 04:53 AM   #4
Registered: Jul 2005
Location: Portland, OR
Distribution: Debian Testing
Posts: 78

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Exists as what?

ls -al /dev/dsp ... is it a symlink to something (such as to /dev/sound/dsp , etc) that doesnt exist?

I would go ahead and delete it and recreate it. The previous post was correct in how.
Old 02-10-2007, 09:26 PM   #5
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Registered: Jan 2007
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I have SB Live! sound card and pinnacle PCTV tuner and also
get message " Device /dev/dsp can't be opened'.

when I type:

root@darkstar:/home/user# mknod /dev/dsp c 14 3
mknod: `/dev/dsp': File exists

root@darkstar:/home/user# ps aux | grep 'fuser /dev/dsp'
root 909 0.0 0.1 1672 604 pts/1 R+ 03:17 0:00 grep fuser /dev/dsp

user@darkstar:/dev$ ls -l dsp
lrwxrwxrwx 1 root root 4 2006-11-18 13:50 dsp -> dsp0

bash-3.00# ls -l dsp0
crwxrwxrwx 1 root audio 14, 3 2003-08-29 07:47 dsp0

I don't have sound.
How to fix that?

( I have Slack 10.2 )

Last edited by Megi; 02-10-2007 at 09:28 PM.


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