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Old 03-07-2014, 05:32 AM   #1
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Unhappy I am not able to hear any sound from CentOS 5.9


1. I have installed Sound and media player for Centos 'Software Package Installer'.
2. I plugged my headphone in system
3. I am not able to hear sound .

Headphone is working on windows machine.

NOTE : Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01)
Old 03-07-2014, 05:53 AM   #2
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Open a terminal, and run the command 'lsmod | grep snd' and press enter. Type just what is between the quotes, not the quotes. If you have a sound driver loaded, it will look something like this:

lsmod | grep snd
snd 57803 14 snd_timer,snd_pcm,snd_hwdep,snd_hda_codec,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec 81413 2 snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_realtek 194546 1
snd_hda_intel 23043 5
snd_hwdep 6484 1 snd_hda_codec
snd_page_alloc 7145 2 snd_pcm,snd_hda_intel
snd_pcm 72727 3 snd_hda_codec,snd_hda_intel
snd_timer 18798 2 snd_pcm
soundcore 5954 1 snd
If nothing is listed, then you need to load the sound modules. The sound driver for your hardware should be available in most modern distros. The module name is shown here :

As root, the command 'modprobe snd_hda_intel.ko' should load the driver, if it is not loaded.

If the modules are loaded, then bring up a mixer, make sure nothing is muted. Turn up the volume.

Best of luck.

Last edited by camorri; 03-07-2014 at 05:55 AM.
Old 03-08-2014, 11:32 AM   #3
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aplay -l
will list your sound device(s) and
cat /proc/asound/modules
will list the sound module(s) loaded.

The tool to check volume (and select between multiple sound devices) is gnome-volume-control in system preferences. It is just possible that you have two sound devices, motherboard and video-card.
Old 03-08-2014, 01:54 PM   #4
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also before you go to far
CentOS 5.9 is UNSUPPORTED !!!
and the old 5.9 repos have been moved to the historical archive " The Vault"

if you MUST as in 100% must use the OLDER 5 series then upgrade to the ONLY supported version in the legacy 5 series
CentOS 5.10
this is fairly easy to do
su -
yum --releasever=5.10 upgrade
mind you 5.10 is the VERY LAST minor upgrade that 5 will ever get

if the old legacy 5 is NOT a 100% must use
then install the current version
CentOS 6.5
Old 03-10-2014, 01:09 AM   #5
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thanks to all for reply. Now I am able to hear sound my machine.


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