[mythtv-users] Help getting SPDIF optical out to work

[Jay Foster]

On 6/18/2013 5:00 AM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> On 18 June 2013 12:43, John Nissley<jnissley at nissley.org>  wrote:
>>> >>  card 1: ICE1724 [ICEnsemble ICE1724], device 1: ICE1724 IEC958 [ICE1724
>> >  I did try what you mentioned prior to sending the email but if I did not
>> >  tell you that than how would you know.  I forgot to mention that the HDMI
>> >  output does work but I have the HDMI going to my TV for video and I really
>> >  want the digital sound going to my stereo. I am using the DVI output on
>> >  my motherboard with a DVI to HDMI converter to get the video into the TV.
>> >  I was really hoping to force the audio out of the digital SPDIF out on my
>> >  motherboard.  I even purchased another sound card just to rule out any
>> >  hardware malfunction and still nothing. I even placed some recommended
>> >  lines in my /etc/asound.conf file which I never needed before but I
>> >  figured I had nothing to loose.  I think I just need to find a way to
>> >  force the sound out of the port I want instead of letting linux decide
>> >  the one I want.
> did you run alsamixer and toggle the mute button on and off ? unless
> you do that, the output is muted by default for some reasons.
>
> BTW, if your motherboard has both HDMI and DVI output, usually, you
> can get audio from the DVI output too as it pass exactly the same
> signal as the hdmi port, only the physical connector is different.
>
> you don't need to modify /etc/asound.conf
>
This may not be relevant to you, but on my mythtv system (using SPDIF 
out), the audio occasionally stops working.  When this happens, I open a 
shell and run the command, "iecset audio on" and this fixes it.

Jay