USB sound

Basil Chupin blchupin at
Sun Oct 6 05:19:13 UTC 2013

On 06/10/13 05:56, Ric Moore wrote:
> On 10/05/2013 11:36 AM, Basil Chupin wrote:
>> On 05/10/13 23:58, R Kimber wrote:
>>> On Fri, 04 Oct 2013 23:19:34 +1000
>>> Basil Chupin wrote:
>>>> Oooops, forgot to mention that you may have to uninstall or disable
>>>> pulseaudio before using alsamixer. I don't know what pulseaudio is 
>>>> like
>>>> now but in the past pulseaudio was a pain in the butt because when you
>>>> ran alsamixer only 2 or 3 channels were displayed and only by
>>>> uninstalling or disabling pulseaudio could you see ALL the available
>>>> channels handled by your sound card/chip. (Which is why I always 
>>>> disable
>>>> pulseaudio as I have no need for it.)
>>> I tried both with and without pulseaudio disabled.  Something
>>> somewhere is
>>> stopping the external USB sound device from being detected.
>>> - Richard.
>> This begs the question of which versions of USB are involved in this
>> setup of yours? For example, USB 3 is backward compatible with USB 2 but
>> I not sure if it is with USB 1.1. And I don't think USB 1 will work with
>> USB 3.
>> Also, how many devices are using the same USB port? If there are, say, 2
>> devices then one of them will miss out if the other one is using the USB
>> port.
> I still want to know what alsamixer shows. We HAVE to know. :) Ric

The key statement here is, " Something somewhere is stopping the 
external USB sound device from being detected."

If the device is not being detected then alsamixer won't show it.

AND which is why it *is* important to run alsamixer and use F6 to see if 
it comes up with the device, right? :-)


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