[mythtv-users] HDMI audio - MB or a Video card that just works?

[Ryan Allen]

* James Crow <james at ultratans.com> wrote on [08-25-09y 11:10]:
> On my card the pin closest to the hdmi connector is the data pin. The pin 
> closest to the GPU is ground. The data pin has a white triangle above it on 
> the PCB. 

This is fantastic information, and really helps me eliminate a lot of
confusion.


>
> For reference my MB is an Asus M2N-MX SE Plus. The on board audio is listed 
> as:
>
> james at mythfront:~$ sudo lspci -vv -s 00:05.0
> 00:05.0 Audio device: nVidia Corporation MCP61 High Definition Audio (rev 
> a2)
>    Subsystem: ASUSTeK Computer Inc. Device 8290
>    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
> Stepping- SERR- FastB2B- DisINTx-
>    Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
> <MAbort- >SERR- <PERR- INTx-
>    Latency: 0 (500ns min, 1250ns max)
>    Interrupt: pin B routed to IRQ 23
>    Region 0: Memory at d8ff8000 (32-bit, non-prefetchable) [size=16K]
>    Capabilities: [44] Power Management version 2
>        Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
> PME(D0-,D1-,D2-,D3hot+,D3cold+)
>        Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>    Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/0 
> Enable-
>        Address: 0000000000000000  Data: 0000
>        Masking: 00000000  Pending: 00000000
>    Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
>    Kernel driver in use: HDA Intel
>    Kernel modules: snd-hda-intel
>

We have almost the exact same hardware.  My MB is the ASUS
M2N-something, and my on-board sound is almost exactly as yours, but
it's the nVidia Corporation MCP51 instead of the 61.



> In alsamixer I have IEC958 and IEC958D (IEC958 Default PCM). Both are 
> un-muted.

Yup, me too...

>
> In Myth I have
>
> audio output device: ALSA:spdif
>
> pass thru output device: Default
>
> AC3 and DTS passthrough are checked.

I haven't even tried with myth yet.  Still using aplay.


>
> Nvidia drivers 180.60 are installed.
>

I'm running the 180.44 drivers...


> I have tested this setup on two televisions and HDMI audio has worked on 
> both.

Awesome!


>
> If I can help you with any more settings let me know.
>

You have been super helpful thus far!  Thanks,
    Ryan



> Thanks,
> James

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