I am having trouble getting sound over hdmi with my Nvidia MCP7A HDMI. The strange thing is that everything works fine in a Live disc, but once I do a fresh install of that Live disc I get no sound, even though my configuration is exactly the same (as far as I can tell). I've checked the little things like alsamixer volumes, aplay -l, etc etc. Everything looks good to me. I can reproduce on multiple TVs so its not the receiver. Video drivers are the same in both live version and installed. aplay -l detects my device. sound/pci/hda/patch_nvhdmi.c already has my correct vendor id in it. Perhaps the following info can help figure out what my installed environment is lacking. I've been at it for days now and I'm stumped! Any ideas?

*Live Disc Info*

XMBC Live 9.11 (basically a optimized version of Karmic configured to start XBMC, or Xbox Media Center, see http://www.xbmc.org for more info) NOTE: My problem is not specific to the XBMC program. Things like aplay and speaker-test don't work either.

*Hardware*

Acer Aspire Revo R1600

http://www.newegg.com/Product/Product.aspx?Item=N82E16883103228&Tpk=AR16...

*XBMC Live installed to hard disk via Ubuntu installer*

(This setup gives me no sound over HDMI)

(This is a fresh install. No additional changes were made)

alsa-info.sh

http://www.alsa-project.org/db/?f=ab7cef7c7233f8c42756d36e362df684b9147d38

xbmc@XBMCLive:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0

xbmc@XBMCLive:~$ aplay -L default:CARD=NVidia HDA NVidia, ALC662 rev1 Analog Default Audio Device front:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog Front speakers surround40:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers hdmi:CARD=NVidia,DEV=0 HDA NVidia, NVIDIA HDMI HDMI Audio Output null Discard all samples (playback) or generate zero samples (capture)

* ### speaker-test executes but NO SOUND over hdmi*. *I've also tried other devices like -D hdmi:0 -D hw:0,3 -D hdmi -D plug:hdmi, etc, etc*

xbmc@XBMCLive:~$ speaker-test -D plughw:0,3 -c2

speaker-test 1.0.20

Playback device is plughw:0,3 Stream parameters are 48000Hz, S16_LE, 2 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 64 to 16384 Period size range from 32 to 8192 Using max buffer size 16384 Periods = 4 was set period_size = 4096 was set buffer_size = 16384 0 - Front Left 1 - Front Right Time per period = 5.637709 0 - Front Left

xbmc@XBMCLive:~$ cat /proc/driver/nvidia/version NVRM version: NVIDIA UNIX x86 Kernel Module 190.53 Tue Dec 8 18:51:41 PST 2009 GCC version: gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu8)

* XMBC Live Disc *

** (This setup gives me audio over hdmi perfectly)

(This is running as a Live disc, ie not installed)

** alsa-info.sh

http://www.alsa-project.org/db/?f=c95bebdc433f15147fb0be415be4e61e4d0b72ad [ ^http://www.alsa-project.org/db/?f=c95bebdc433f15147fb0be415be4e61e4d0b72ad ]

xbmc@XBMCLive:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0

xbmc@XBMCLive:~$ aplay -L default:CARD=NVidia HDA NVidia, ALC662 rev1 Analog Default Audio Device front:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog Front speakers surround40:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=NVidia,DEV=0 HDA NVidia, ALC662 rev1 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers hdmi:CARD=NVidia,DEV=0 HDA NVidia, NVIDIA HDMI HDMI Audio Output null Discard all samples (playback) or generate zero samples (capture)

###* speaker-test plays audio over hdmi perfectly. other programs play audio over hdmi.*

xbmc@XBMCLive:~$ speaker-test -D plughw:0,3 -c2

speaker-test 1.0.20

Playback device is plughw:0,3 Stream parameters are 48000Hz, S16_LE, 2 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 64 to 16384 Period size range from 32 to 8192 Using max buffer size 16384 Periods = 4 was set period_size = 4096 was set buffer_size = 16384 0 - Front Left 1 - Front Right Time per period = 5.638693

xbmc@XBMCLive:~$ cat /proc/driver/nvidia/version NVRM version: NVIDIA UNIX x86 Kernel Module 190.53 Tue Dec 8 18:51:41 PST 2009 GCC version: gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu8)

*Additional Information

* I had an idea to run a diff on the two alsa-info.sh outputs of my installed and live version. (non-working and working, see above) I figured that might give me a clue on what I was missing. Most things should be identical with a few exceptions like timestamps, etc.

MacBook-Austin:Desktop Austin$ diff -crB alsa-info_installed.txt alsa-info_live.txt > alsa-infodiff.diff

alsa-info_installed.txt: http://pastebin.com/f63afa045 (non-working, same as above)

alsa-info_live.txt: http://pastebin.com/f7b47d46d (working, same as above)

alsa-infodiff.diff: http://pastebin.com/f79cf9c15

Only a few things caught my attention. At first I thought I had my playback volumes muted (line 525,532) according to the diff. But then I realized that was just for the mic, so that shouldn't matter. The only other thing that I saw was that my Amp-Out vals differed (line 123, 129). Perhaps, a more trained eye will have better luck.

Bug has also been reported here: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4865