[mythtv-users] Strange Audio Problem 0.25 [SOLVED]

[jr]

On Wed, Jun 13, 2012 at 3:02 AM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> Hi
>
>
> On 13 June 2012 13:43, jr <jraymyth at gmail.com> wrote:
>
>> Hmmm.  This is confusing.  Using 7 in that line resulted in a no
>> device found error.  But it got me wondering, so I went thru all of my
>> listed devices with DEV=7, and found one that works.
>>
>> ALSA:dmix:CARD=NVidia,DEV=7
>
> I think you can safely ignore whatever Igor has suggested, none of his
> suggestions make any sense, and even less so with any modern linux
> distributions
>
> From looking at the original logs you have provided:
>
> The audio device you have connected doesn't support AC3/DTS, only stereo PCM.
> So yes, you would hear audio because the audio test will only try stereo.
> Here you're trying to play AC3 which your audio device (TV) doesn't support.
> You have configured your machine and enable AC3/DTS passthrough.
> Uncheck those. Keep audio as Stereo.
>
> As you're running a very recent version of ALSA, you can see what your
> audio device supports in the help description at the bottom of the
> screen when you move the cursor to the audio device name (here
> ALSA:hdmi:blah
>
> If you believe your TV does support AC3/DTS (which would be very
> surprising but who knows...)
>
> It could be a problem I've seen with very recent version of ALSA if at
> any time you put your PC to sleep and turned it back on before the TV
> was on. The ELD value isn't read properly and ALSA disable some audio
> options
>
> Try rebooting your PC, making sure the TV/amplifier is on before the PC reboot.
>
> Jean-Yves
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You are dead on.  I assumed (for whatever reason) that since those
boxes were disabled, that their state of default check-ed-ness would
be ignored.  That is clearly not the convention.  So, I switched to a
device that enabled E-AC-3, TrueHD and DTS-HD, unchecked them, and
then went back to my original ALSA:hdmi:CARD=NVidia,DEV=1 -- And
voila!  Sound.

Thank you both for your efforts.