Re: [linux-audio-user] USB Audio has played but no longer does so.

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Subject: Re: [linux-audio-user] USB Audio has played but no longer does so.
From: Chris Lyon (chris.lyon_AT_spritenote.co.uk)
Date: Fri Sep 17 2004 - 17:58:59 EEST


/proc/asound/cards reports

0 [rev20 ]:VIA686A -VIA 82C686A/B rev20
                                      VIA 82C686A/B rev20 at 0xac00, irq 11
1 [UA100 ]: USB-Audio - UA-100
                                       Roland UA-100 at usb-00:07.2-2

So it looks like something is seen but how do I get aplay to play to the
UA-100? The VIA card has alway's reported itself but neither windows,
linux or anything else has ever got any life out of it!

so do I use the aplay to select the card even thou, aplay -l doesn't
list it?

Chris

Chris Lyon wrote:

> Dear all,
>
> Roland UA-100 plugged into PC, usbview detects interface.
>
> aplay -l doesn't report any knowledge of the device.
>
> I believe I have loaded the appropriate modules, snd-usb-audio but the
> system resolutely refuses to make music as it has before. I would
> include the appropriate modules.conf files to show but this E-mailing
> machine and the linux box are not connected and I feel cross reading
> would be a little error strewn.
>
> Can anyone outline a procedure for checking at which point a problem
> might occur and, if possible, a list of command line utilities that
> can reveal precisely what components are loaded. Is it possible to
> load modules incompletly such that a component identifies it's
> presence but isn't actual functioning. If this is so how does one
> check the dependancies?
>
> I understand that amix and alsamixer won't recognise the presence of a
> USB connected audio interface, is this the case?
>
> Any help appreciated.
>
> Chris Lyon
>
>
>


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