[CentOS] dual sound

[m.roth at 5-cent.us]

Les Mikesell wrote:
> On 7/29/2011 1:22 PM, m.roth at 5-cent.us wrote:
>>
>> Streaming audio: a 'Net "radio station".
>>
>> And I've had the external speakers jacked in both in the front
>> "headphones" jack, and the traditional one in the back, and sound comes
>> both out of the external speakers and a speaker inside the machine.
>
> That's usually a hardware thing where plugging something into the
> headphone jack breaks the connections to the speakers.

I know. That's why I mentioned what I'd done, and that I was confused,
because that's the result I expected, and I'm not getting it.

       mark