It works! It works! It works!<br><br>I am not sure what I have done differently this time but now it is working....<br><br>For the record....<br><br>I have an Asus M3N78-EM MicroATX motherboard with both onboard HDMI and SPDIF.<br>
I am running mythbuntu amd64<br>Alsa has been upgraded to 1.0.18 using the AlsaUpgrade-1.0 script<br><br>aplay -l shows <br><br>root@juliette:/etc# aplay -l<br>**** List of PLAYBACK Hardware Devices ****<br>card 0: NVidia [HDA NVidia], device 0: ALC1200 Analog [ALC1200 Analog]<br>
Subdevices: 1/1<br> Subdevice #0: subdevice #0<br>card 0: NVidia [HDA NVidia], device 1: ALC1200 Digital [ALC1200 Digital]<br> Subdevices: 1/1<br> Subdevice #0: subdevice #0<br>card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]<br>
Subdevices: 1/1<br> Subdevice #0: subdevice #0<br>root@juliette:/etc# <br><br>aplay -L shows<br><br><br>root@juliette:/etc# aplay -L<br>default:CARD=NVidia<br> HDA NVidia, ALC1200 Analog<br> Default Audio Device<br>
front:CARD=NVidia,DEV=0<br> HDA NVidia, ALC1200 Analog<br> Front speakers<br>surround40:CARD=NVidia,DEV=0<br> HDA NVidia, ALC1200 Analog<br> 4.0 Surround output to Front and Rear speakers<br>surround41:CARD=NVidia,DEV=0<br>
HDA NVidia, ALC1200 Analog<br> 4.1 Surround output to Front, Rear and Subwoofer speakers<br>surround50:CARD=NVidia,DEV=0<br> HDA NVidia, ALC1200 Analog<br> 5.0 Surround output to Front, Center and Rear speakers<br>
surround51:CARD=NVidia,DEV=0<br> HDA NVidia, ALC1200 Analog<br> 5.1 Surround output to Front, Center, Rear and Subwoofer speakers<br>surround71:CARD=NVidia,DEV=0<br> HDA NVidia, ALC1200 Analog<br> 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers<br>
null<br> Discard all samples (playback) or generate zero samples (capture)<br><br>I have created a system wide preferences file for alsa (/etc/asound.conf) which looks like the following...<br><br>pcm.!default {<br> type hw<br>
card 0<br> device 3<br>}<br><br>The existence of the above file makes no difference to MythTV but is needed for base OS audio functionality (e.g. launching vlc etc without specifying an output audio device.<br>
<br>My mythtv settings are:<br><br>Audio output device: ALSA:hw:0,3<br>Passthrough output device: ALSA:hw:0,3<br>Max Audio Channels: Stereo<br>Enabale AC3 to SPDIF passthrough checked<br>Enable DTS to SPDIF passthrough checked<br>
Aggressive sound card buffering off<br>Use internal volume controls off<br><br>With all the above set, I get audio and video through HDMI<br><br>Many thanks for everyone's help!<br><br>Now to get the LCD display and remote working....<br>
<br>Cheers<br><br>Phil<br><br><br><br>