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Date: Sat, 9 Oct 2010 18:43:18 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Scott Ballantyne <sdb@ssr.com>
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	(wonkity.com [127.0.0.1]); Sat, 09 Oct 2010 18:43:19 -0600 (MDT)
Cc: Tim Kellers <timothyk@wallnet.com>, freebsd-questions@freebsd.org
Subject: Re: No Sound FBSD 8.1
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On Sat, 9 Oct 2010, Scott Ballantyne wrote:

> Hi Tim,
>
> You write:
>> I finally kldload(ed) snd_* and went through the list of the loaded
>> modules until I eliminated useless loaded modules and found the one that
>> actually let the sound files play.  It was a pain in the butt, but it
>> worked.
>>
>> What does kldstat say for your .ko loaded sound files?
>>
>
> The problem was partly solved by Frank's suggestion to set the default
> device to 1, although I don't know why. Now I get sound through the
> earphones, but not the speakers.

Look at your /dev/sndstat again, you have multiple audio devices.  One 
of them is the HDMI output on the video card.  Setting 
hw.snd.default_unit just selects the default unit to use for playing 
audio.  Try the various units until you find the right one.