[mythtvnz] Mythbuntu 9.10 HDMI audio for nvidia?

[Douglas Pearless]

I notice that the audio over HDMI for the NVIDIA GT210 and GT220 is 
still a work in progress and patches are being tried in the alsa-dev 
list to try and figure out how the codecs work.

I am following this closely as I have a GT220!

Douglas.

On 21/12/2009 12:30 p.m., Jean-Yves Avenard wrote:
> Hi
>
> 2009/12/21 Stuart Whelan<mythtv at somepointinthefuture.co.nz>:
>    
>> I am using a Galaxy GeForce 9500GT connected to a Sony LCD TV.
>>      
> This video card doesn't support directly native audio over HDMI.
>
> The way it takes the audio is through a passthrough cable connected to
> the SPDIF interface on the motherboard.
>
> As such, you don't do anything related to HDMI audio with this card;
> you only configure the standard SPDIF (IEC958) audio forgetting about
> the video card.
>
>    
>> The TV is connected via a DVI ->  HDMI cable.
>>      
> Does that card has a HDMI connector ?
> Did you connect the video card to the SPDIF header on the motherboard ?
>
>    
>> Last night I tried the various MythTv frontend settings for "Audio
>> output device" and "Passthrough output device". Some of the options
>> included an option for HDMI output, but I was unable to hear anything
>> no matter what settings I tried.
>>      
> Yes, with this card ; forget about HDMI ; it's not relevant to your card.
>
> native HDMI audio is only supported with the 9400/9300 chipset and the
> new nvidia GT2xx cards
>    
>> --
>> frontend at frontend:/var/log$ aplay -l
>> **** List of PLAYBACK Hardware Devices ****
>> card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog]
>>   Subdevices: 1/1
>>   Subdevice #0: subdevice #0
>> card 0: Intel [HDA Intel], device 1: ALC883 Digital [ALC883 Digital]
>>   Subdevices: 1/1
>>   Subdevice #0: subdevice #0
>> --
>>
>> No HDMI mentioned there, although I am running the command from work
>> and the TV may be switched off. Not sure if that matters.
>>      
> This is normal as explained above.
>
> Make sure you have connected your nvidia card to the SPDIF header on
> the motherboard.
> If your video card doesn't have such cable or connector ; you can't do
> audio at all
>
> Jean-Yves
>
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