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Old 11-17-2011, 01:14 PM   #1
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No Sound Fresh Install

I've just installed Debian Linux (Wheezy) and I hooked up my speakers and don't hear any audio from flash or sites that commonly stream sound. I know I would need 'alsa' so I manually installed 'alsa-base' but that did nothing. How can I properly troubleshoot my system and verify I have the correct packages for sound to properly render on my new Debian Linux machine?

I did verify my login user is a member of the 'audio' & 'cdrom' group.

carlos@tuna:~$ groups
users cdrom audio
Old 11-17-2011, 01:16 PM   #2
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Try to run
to see if nothing is muted.

Kind regards
Old 11-29-2011, 02:00 PM   #3
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No problems in 'alsamixer'. It comes up just fine. When I press 'M', I can see it mute the channel with 'MM' at the bottom. Anything else?
Old 11-29-2011, 07:51 PM   #4
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Do you have;
deb testing main non-free
in your sources.list? You probably need it, depends on what you want to listen to.

Do you have the package "firmware-linux" installed? It is in the non-free section. It is a meta package that pulls in firmware-linux-free and firmware-linux-nonfree. That last needs to be installed for sure. Many of these are included in the kernel but removed by Debian as they do not meet the Debian standard for "free".
Old 11-29-2011, 10:07 PM   #5
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in your web browser type the following


post the results in a code box pls

2) link to a flash movie that is not working for you

tip look to see if sound shows as muted in the web browser
THEN slide volume to the right or up (test site is

3) link to a streaming site that is ditto


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