No Audio on Asus P5N-E-SLI

[robn30]

Your video card supports pre-azalia HDMI audio (S/PDIF over HDMI).
To make this work you have to connect the mobo S/PDIF header to the video card (3 or 4 wire).

HDMI audio from the GPU requires the proprietary driver.
It is possible that the video card is outputting empty audio data packets & the monitor is switching to this..
Is your monitor connected by HDMI or DVI-HDMI adapter ?

Yes it is connected over DVI-HDMI. The video card is a 8600GT, it doesn't have any audio capability to my knowledge. The MB does not have HDMI out either. My video card only has 2 DVI outputs and no HDMI. You may need to explain more fully but clearly you are correct about something, especially with audio at the front panel headphone jack. That at least tells me audio is not fully broke, something is just inhibiting the output to the speakers.

[robn30]

Here is the exact card I have. Link below.
http://www3.pny.com/font-color999999...Specifications

[BicyclerBoy]

HDMI is just a cheap single link DVI-D with a different protocol specification (& licence fees).
DVI-D can carry HDMI audio.

If your card has a S/PDIF input then it can output 2 ch stereo & digital pass-thru' (AC3/DTS) only over HDMI (not HDA).

Some of the 8600GT have a S/PDIF input headersl, looks like a fan header.
I'm not sure if the video card will output 'empty' audio data with no connection to the S.PDIF header.

Have you tried using?
pavucontrol

There a comment about your mobo at the bottom page:
http://alsa.opensrc.org/Hda

The MCP51 chipset has problems with "msi"; snd_hda_intel driver auto-disables it.
You could try adding to grub :
- pci=nomsi
- acpi=off

Did you ever try to disable the mobo sound in bios ?
And then plug in your soundcard ?

I'm glad I have the intel P45 chipset version of that mobo..

[Yellow Pasque]

HDMI is just a cheap single link DVI-D with a different protocol specification (& licence fees).
DVI-D can carry HDMI audio.
If your card has a S/PDIF input then it can output 2 ch stereo & digital pass-thru' (AC3/DTS) only over HDMI (not HDA).
Some of the 8600GT have a S/PDIF input headersl, looks like a fan header.
I'm not sure if the video card will output 'empty' audio data with no connection to the S.PDIF header.

What are you talking about? There is no audio connected/detected on the 8600GT (not sure why OP even mentions the GPU).

The MCP51 chipset has problems with "msi"; snd_hda_intel driver auto-disables it.

MSI is already disabled (look at the alsa info). I'm not sure how disabling ACPI helps either..

Did you ever try to disable the mobo sound in bios ?
And then plug in your soundcard ?

The onboard/mobo sound IS the device the OP wants sound out of.

[BicyclerBoy]

Granted this is misleading..
But his monitor could detect HDMI audio stream & switch over.
I don't know any monitors that do this (some TVs do) but I don't presume...
His monitor speakers stop working with the nVidia driver.

The GPU is mentioned because when the nVidia driver is used the mobo audio stops working.

What you you mean no audio detected on the GPU; pre-azalia does not work that way.
How do you know there is no audio connection to GPU?
Maybe the OP has the internal S/PDIF link cable fitted..

I explained that his HDMI audio (if possible) would be just S/PDIF from a soundcard (inc mobo).

I know msi is disabled by snd-hda-intel I already said just that & you quoted it....
but does this apply to all other MCP51 drivers &/or does it need to ?

I know the OP are trying to use mobo chipset sound..but..
The OP has tried to use a PCI soundcard previously..so this question was to find out if that option was exhausted.
It might still be a better solution.

I think trying a couple of grub boot options are :
- easy to try
- harmless
even if a long shot.

Maybe the OP just needs to find the right modprobe options to connect the I/O panel speaker jacks correctly.

[robn30]

Granted this is misleading..
But his monitor could detect HDMI audio stream & switch over.
I don't know any monitors that do this (some TVs do) but I don't presume...
His monitor speakers stop working with the nVidia driver.

The GPU is mentioned because when the nVidia driver is used the mobo audio stops working.

What you you mean no audio detected on the GPU; pre-azalia does not work that way.
How do you know there is no audio connection to GPU?
Maybe the OP has the internal S/PDIF link cable fitted..

I explained that his HDMI audio (if possible) would be just S/PDIF from a soundcard (inc mobo).

I know msi is disabled by snd-hda-intel I already said just that & you quoted it....
but does this apply to all other MCP51 drivers &/or does it need to ?

I know the OP are trying to use mobo chipset sound..but..
The OP has tried to use a PCI soundcard previously..so this question was to find out if that option was exhausted.
It might still be a better solution.

I think trying a couple of grub boot options are :
- easy to try
- harmless
even if a long shot.

Maybe the OP just needs to find the right modprobe options to connect the I/O panel speaker jacks correctly.

I no longer have the Sound Blaster card installed as it would not produce sound either. I have not tried it in a while. I do not have anything connected to the Video card in the way of S/PDIF. Plus I am pretty positive that sound can't be passed over DVI->HDMI anyway. Obviously something is being disabled or rerouted but I don't know why. Like I said the front panel headphones work fine and I believe that is controlled by the MCP51 as well. I do not have any MSI components either. The MB is Asus and the video card is PNY. Being this card has 2 DVI and one S-video outputs, I would assume it has no audio capability. Lastly nothing in the write-up about the card says anything about audio. The link I posted is where I read up about the card. Thanks for the input, I really appeciate it. The more discussion the greater the possibilty of getting this solved. Thanks.

EDIT: Here is a link to the photo of the card. I believe the connector on the top is for SLI. i see no other connector for audio.
http://img.ncix.com/images/26798_2.jpg

[robn30]

Funny thing is I have a MSI 8600GT installed in a different machine with the Nvidia Driver activated and sound works perfectly fine. Although I am not sure the video card has anything to do with this issue at all. I am pretty sure it is the MB chipset that is the issue. I wonder if the Nvidia Driver also modifies the MCP51 chipset somehow?

[BicyclerBoy]

With the risk of misleading you again...

http://forums.nvidia.com/index.php?showtopic=155071

Top left of your photo/picture; is that a missing header or just some SMD components?

msi is a TLA for message signalled interrupts; something the audio component of MCP chipsets have problems with..

For what's worth I agree with your assessment of the issue.
The video driver appears to be interfering with the chipset audio.
The driver probably has to modify the chipset configuration to function.
SLI ?

Your alsa info in post #4.. is this with the nVidia driver ?
The nouveau driver is listed in the loaded modules.
Historically (*buntu 10.04) the nouveau module had to be blacklisted.
I don't see the nVidia video driver..
The audio driver reports to be auto-setting the "enable_msi=0" option but there is no harm in setting this again.

When you tried the modprobe options for snd-hda-intel did you run
[sudo] update-initramfs -u
before rebooting ?
http://www.kernel.org/doc/Documentat...dio-Models.txt

[robn30]

With the risk of misleading you again...

http://forums.nvidia.com/index.php?showtopic=155071

Top left of your photo/picture; is that a missing header or just some SMD components?

msi is a TLA for message signalled interrupts; something the audio component of MCP chipsets have problems with..

For what's worth I agree with your assessment of the issue.
The video driver appears to be interfering with the chipset audio.
The driver probably has to modify the chipset configuration to function.
SLI ?

Your alsa info in post #4.. is this with the nVidia driver ?
The nouveau driver is listed in the loaded modules.
Historically (*buntu 10.04) the nouveau module had to be blacklisted.
I don't see the nVidia video driver..
The audio driver reports to be auto-setting the "enable_msi=0" option but there is no harm in setting this again.

When you tried the modprobe options for snd-hda-intel did you run
[sudo] update-initramfs -u
before rebooting ?
http://www.kernel.org/doc/Documentat...dio-Models.txt

ALSA info was with the driver installed. Pretty sure there is no header there on the card. It has been so long now that I can't remember exactly what I did with modprobe. I may have to try and redo some of those procedures and see if anything happens to fix the issue. I can't believe I am the only one with this issue.

[BicyclerBoy]

You can try the modprobe option directly in terminal.
sudo rmmod snd-hda-intel
sudo modprobe snd-hda-intel enable_msi=0 model=auto

There's only about 2 dozen to try..+ test..

Quoted from http://www.kernel.org/doc/Documentat...a/HD-Audio.txt
Some codecs such as ALC880 have a special model option `model=test`.
This configures the driver to provide as many mixer controls as
possible for every single pin feature except for the unsolicited
events (and maybe some other specials). Adjust each mixer element and
try the I/O in the way of trial-and-error until figuring out the whole
I/O pin mappings.