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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


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Old 01-16-2013, 11:43 AM   #1
Registered: Jan 2004
Posts: 466

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No sound in the debian wheezy?

The system didn't load any sound card modules or drivers:
#lsmod | grep snd
The lspci show the audio card:
# lspci | grep audio
02:01.0 Multimedia audio controller: C-Media Electronics Inc CMI8738/CMI8768 PCI Audio (rev 10)
# cat /proc/asound/cards
cat: /proc/asound/cards: No such file or directory
In the sound sittings there is no sound card but instead there is "dummy output"
the pulsaudio and alsa are installed:
ii alsa-base 1.0.25+2+nmu all ALSA driver configuration files
ii alsa-tools 1.0.25-2 i386 Console based ALSA utilities for
ii alsa-utils 1.0.25-3 i386 Utilities for configuring and usi
ii pulseaudio 2.0-6 i386 PulseAudio sound server
Old 01-17-2013, 04:13 AM   #2
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Registered: May 2010
Location: Planet Earth
Distribution: Debian
Posts: 1,030

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Originally Posted by shams View Post
#lsmod | grep snd
Are you using a custom kernel? If yes, make sure the modules for your sound card are included/loaded, otherwise ignore this part.

Then use the command alsactl init to setup the card. Also check the volume on alsamixer, sometimes it is set all the way down.

Old 01-17-2013, 01:38 PM   #3
Registered: Aug 2012
Posts: 128

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I had a similar card and after a few hours of troubleshooting I finally solved it.

Open /etc/modprobe.d/alsa-base.conf


options cx88_alsa index=-2
change it to:

options cx88_alsa index=0
and restart.

I don't know if it will work for you, but you had to try it. I had a c-media card too.
Old 01-21-2013, 10:03 PM   #4
Registered: Aug 2011
Distribution: Slackware 14, Debian 7.0.0 Wheezy, Windows 7, Windows 8
Posts: 117

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Tr installing all new drivers from main site of alsa.

After searching for several hours this solution works for me like a charm.


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