Thanks for replying! I need at the help I can get !!
Thats the driver I have installed at first.
If you are aware of a second solution, please let me know!
Just for the benefit of LQ, here's my understanding of the problem:
The ALSA kernel modules are not recognizing the sub-devices of the audio controller therefore not installing the correct files (or whatever it is) for alsaconf or aplay -l to recognize all devices..
This is why cat /proc.../cards would see the top levekl device, but not the sub devices, hence aplay does not see them either.
Ubuntu users at xbmc.org have provided this as a workaround (for ubuntu):
I got my Zotac GT 430 Zone today and getting audio to work via HDMI on Ubuntu Lucid is actually pretty easy. What you need is the current nvidia driver (I'm using 260.19.12) and a patched snd_hda_intel ALSA driver.
Here are some short instructions of what I did:
First add the required package repositories and install the drivers:
sudo add-apt-repository ppa:ubuntu-audio-dev/ppa
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current linux-alsa-driver-modules-$(uname -r)
Now you have all the required drivers, but you still need to manually set the probe mask of snd_hda_intel driver. That is the "tricky part". Start your X-Server (audio only works when X is running) by i.e. starting XBMC and switch back to a Linux console or SSH session. Change to the directory /proc/asound and examine all "card?" directories for eld-files:
# cd /proc/asound
# find . -name 'eld*'
Now you have to check which eld-file corresponds to your monitor. Just display the content of each eld file and check if you can find any monitor information. I'm using a Samsung TV, so my eld-file looks like that:
# cat card1/eld#3.0
eld_version [0x2] CEA-861D or below
edid_version [0x3] CEA-861-B, C or D
speakers [0x1] FL/FR
sad0_coding_type [0x1] LPCM
sad0_rates [0xe0] 44100 48000 88200
sad0_bits [0xe0000] 16 20 24
When you found the eld file which contains your monitor information, you have to translate the number of the eld file into a probe mask for the snd_hda_intel module. The eld file which contained my monitor information was "eld#3.0" so my eld-number is "3.0". Now use the translation map below to find the correct probe-mask for your device:
0.0 => 0x101
1.0 => 0x102
2.0 => 0x104
3.0 => 0x108
As you can see, I have to use the probe-mask 0x108 as my eld-file-number is 3.0. Now you can reload the snd_hda_intel module with the correct module parameters. Of course you have to use your probe_mask for this:
# sudo rmmod snd_hda_intel
# sudo modprobe snd_hda_intel enable_msi=0 probe_mask=0x108
Restart XBMC and sound should be working now, but you may have to set the correct sound device in the XBMC audio hardware settings and you might also have to unmute the sound device using alsamixer. For me passthrough and normal mode are both working with this setup.
If sound works for you too, you have to add your module-settings to the system startup files, otherwise your settings won't survive a reboot.
echo "options snd-hda-intel enable_msi=0 probe_mask=0x108" | sudo tee /etc/modprobe.d/nvidia-hdmi.conf
Don't forget to adjust your probe_mask in the example above.
The official nvidia forum also discuss about the issue:
So basically, I think I need to either patch the driver or install the latest alsa kernel modules. I also need to patch libasound because I want to use my other sound devices as well (the ATI onboard sound controller). If I dont do that I wont be able to use the other controllers, only hdmi.
The xbmc users also specified :
Still the best solution might be to search for a slackware package which contains the latest ALSA kernel modules. The problem is not that uncommon, as modern mainboards often have sound devices which are not yet supported by the current distribution kernel. Therefore I'm pretty sure you can get updated ALSA kernel modules for slackware as well. The latest ALSA kernel modules (at least those in SVN) do contain the patch already.
I barely know where to start from... any hints??