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Old 06-12-10, 12:56 AM   #1
sjakub
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Join Date: Jun 2010
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Default HDMI audio with NVIDIA NVS 3100M

Hi.

I am having problems getting the HDMI audio working with NVIDIA NVS 3100M card
(this is a card in Lenovo T410 laptop).
When I'm not using any options for the snd-hda-intel module, I have
4 controls in alsamixer: S/PDIF >S/PDIF 1 S/PDIF 2 S/PDIF 3.
Playing to any of the 4 available devices doesn't produce any sound through
TV.

In a thread about GT2XX cards
( http://forum.xbmc.org/showthread.php?p=527386 )
there was a solution - adding "options snd-hda-intel enable_msi=0
probe_mask=0xffff,0xfff2" to modprobe's config.
When I am using this option I have only one S/PDIF output, but I am still not
getting any sound through TV.

I have tried it with nvidia drivers 195.36.24 and 256.29, but there is no difference

I have also run alsa-info.sh script and uploaded the results (this is without any
options for the modprobe):
http://www.alsa-project.org/db/?f=75...59d0bf6ca3dfc8

This is info from lspci about this card:

01:00.0 VGA compatible controller: nVidia Corporation NVIDIA NVS 3100M (rev
a2)
01:00.0 0300: 10de:0a6c (rev a2)

01:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev
a1)
01:00.1 0403: 10de:0be3 (rev a1)

Any hints? Maybe I can debug or check something else? I am ok with modifying
and building kernel modules, I just have no idea where to start...


Thanks!
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Old 02-22-11, 12:33 AM   #2
spupkie
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Join Date: Feb 2011
Posts: 1
Default Re: HDMI audio with NVIDIA NVS 3100M

Hi there, did you ever resolve this issue? It appears that I went through the same steps you did ...also to no avail.
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Old 02-22-11, 12:59 PM   #3
danix
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Join Date: Feb 2010
Location: Santa Clara, CA
Posts: 237
Default Re: HDMI audio with NVIDIA NVS 3100M

Make sure you're using a new enough ALSA kernel driver for the GPU. The nvidia-bug-report.sh script that is included with recent drivers (256 and later, I think) will provide information about the ALSA subsystem, so that you can see if ALSA is configured correctly.

You might want to have a look at:

http://http.download.nvidia.com/XFre...dmi-audio.html

for additional setup/troubleshooting tips.
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