Correct settings for ATI SB700 HDAC 5.1 config

Alexander Motin mav at
Tue Mar 2 10:35:51 UTC 2010

Aryeh M. Friedman wrote:
> Alexander Motin wrote:
>> I don't see problems in your pin configuration. Make sure you have
>> enabled 5.1/7.1 mixing in vchans using sysctl.
> after playing with it for a while I got all the front speakers to play
> but none of the back ones (could this because one of the back ones is
> inoprative [the connector is physically broken])

Are you sure you are playing multichannel audio stream? Sound system
doesn't do any up-mixing now. You should try to play, for example, some
video with AC3 or DTS multichannel audio stream with mplayer, specifying
it to do full 5.1 output with `-channels 6` option.

Alexander Motin

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