[mythtv-users] slightly OT: help with HDMI audio, alsa 1.0.23, GT220

[Ian Forde]

 Sat, 2010-11-13 at 22:46 -0500, Steven Adeff wrote:
> so I upgraded software on my main frontend today as part of my house
> upgrade to 0.24. This machine has Mythbuntu 10.04 (lucid) and I'm
> using the ricotz ppa to get ALSA 1.0.23 to support the GT220 I have
> installed. There is also a built on 7150 with HDMI output, so I want
> to use card 1 (the GT220) as opposed to card 0.
> 
> I had it working until I did the update. Now, I can see the card in
> alsamixer, and if I mute the s/pdif 1 my receiver "loses" the signal
> so I'm figuring this is the device I need to get to play. Neither in
> Myth, or using mplayer (-ao alsa:device=hw=1.x), can I get sound to
> work though.
> 
> Anyone have any ideas for me to try? thanks!

<big snip>

Went through this last weekend on my MBE.  It's also a FE with a GT220
card and an onboard 7150.  I went through the upgrade to 10.10 a few
weeks back, which comes with ALSA 1.0.23.  I also disabled (via BIOS)
the onboard 7150 over a year ago, so now 'aplay -l' looks like this:

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Yep - same as yours except with the onboard completely gone.  In FE
Setup I did a rescan of audio devices and ended up choosing
'ALSA:plughw:CARD=NVidia,DEV=9' to do HDMI audio to the monitor.

Of course, it's probably best that you just try the rescan and the
device I listed before going through upgrading... ;)

Hope that helps...

	-I