[alsa-devel] SPDIF trouble with multiple usb devices

[Ricard Wanderlof]

On Wed, 13 Apr 2016, Scott Doty wrote:

> So I'm having the worst luck with optical SPDIF devices.
>  ...
> 
>  3 [HD             ]: USB-Audio - USB Sound Blaster HD
>                       Creative Technology USB Sound Blaster HD at
> usb-0000:00:14.0-4.7.6, full speed
> 
> I used to be able to use the optical SPDIF input for this device from my
> synth, but that seems to have stopped working.  Further, I can't play
> audio out of the Sound Blaster HD's optical SPDIF output, either.  It
> works in Windows 10, which is where I had to spend my latest music
> session -- yuck.

Exactly what does 'stopped working' mean? Doesn't it should up when you 
enumerate audio devices, does it show up but input and output results in 
silence, does it show up but attempting to send audio results in an error, 
etc. (I know you linked to a long ALSA dump, but folks around here would 
be more willing to help if you stated as precisely as you could which 
symptoms you actually have.)

/Ricard
-- 
Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone +46 46 272 2016                           Fax +46 46 13 61 30