Hello again Raymond and whoever is following this report,

I replaced the HDA-Intel.conf with the above(see #45).  My results are the 
same.  Audio-test -c 6 -t wav results in audio out via the HDMI, stereo only.  
Left-Right reversed and Left-Right Rear, Center and LFE barely audible. 
Audio test videos can be obtained at 
http://www.dolby.com/us/en/consumer/technology/home-theater/dolby-digital-plus-download.html
I have also been using some test DVDs I purchased while working in the 
production studios.  The DVD set is called "Video Essentials NTSC" test dvds by 
JKP.


Running a test using XBMC settings as follows:
Top selection:
Audio Output --> HDMI
Speaker Configuation --> 5.1
Lower Section:
Audio Output Device --> HDA NVidia, HDMI
Passthrough Device --> HDA Nvidia, HDMI
These settings result in only digital data in the audio output (Buzz or Hiss).

Top section (as above)
Lower Section:
Audio Output Device --> HDA Nvidia, ALC888 Digital S/PDIF
Passthrough Device --> HDA Nvidia,ALC888 Digital S/PDIF
These settings result in decoded audio playback of 5.1 surround sound using 
these encoded test videos.

Video: 1920x1080 H.264 @ 24 fps (all test videos)
Test video #1:
Audio Codec:  E-AC-3 (ATSC A/52B)
Channels:  Surround 5.1
Sample Rate: 48000 Hz
Bitrate 640 kbps

Test video #2:
Audio Codec:  DolbyTrueHD
Channels:  Surround 7.1
Sample Rate:  48000
Bitrate N/A

Using the surround sound test video "channelcheck-large.mp4" or 
"channelcheck-small.mp4".
File with extention .m2ts produces digital noise output in VLC.

VLC media player version "2.0.9 Twoflower" settings:
HDA Nvidia, HDMI 0 Audio out selected produces only 5.1 downmixed to stereo.  
There is no option for surround sound with this selection.  The 5.1 downmix to 
stereo is also not properly a mapped L-R it is reversed as R-L.
All HDMI 0 selections available to play through HDMI is only Stereo, there are 
no 5.1 surround sound options under Audio Channels dropdown or Audio Device 
dropdown except analog.

HDA Nvidia, ALC888 Digital IEC958 (S/PDIF) Digital Audio Output only
produces Stereo only.

Using the Audio Selection of: Playback/recording Through Pulseaudio
Sound Server,  produces audio out receiver selected input S/PDIF or HDMI
with Pulseaudio selections (IEC958) or (HDMI)  in Stereo only.

Summery of my findings with both ALSA and Pulseaudio, with the above 
HDA-Intel.conf and even the original script are as follows:
1.   The original script was limited to selections for audio output.  An 
additional output that I have noticed was the "Playback/recording Through 
Pulseaudio sound server", something I have never noticed before.

2.   All output selections only produce Stereo output.  There is no
selection for 5.1surround either S/PDIF, IEC958 or HDMI. There is only
Analog 5.1 and above available.  Earlier releases of Ubuntu before 13.10
had options for 5.1surround S/PDIF, IEC958 or HDMI in the Audio Output
selection and Audio Channels of VLC.  I have not tested with earlier
versions of VLC.

3.   When testing under XBMC version Frodo 12.2, I have full Digital 5.1
surround sound via S/PDIF receiver selection.  When selecting direct
HDMI on the receiver, not HDMI-auto which will default to S/PDIF, some
of the video's audio track did not play through HDMI or if an encoded
5.1 track were to play the audio there is only digital buzz or hiss.

4.  Here is something to look at.  Why is XBMC producing 5.1 surround sound via 
S/PDIF when VLC or other media players do not?  Most all experienced users of 
XBMC state; turn off or completely remove Pulseaudio.
I feel that it is not Pulseaudio and or ALSA  that is thes issues since there 
is no 5.1surround in the standard media players and there is 5.1 surround in 
XBMC but only via S/PDIF.  

5.  Lastly, then I am done here with this since there is no discussion on a 
once and for all fix not patches for this.
As I have stated before more then once, I feel that it is about time to have 
the developers get away from two packages for audio.  Also, get out of  the 
possible mindset of  "if it is not broke, then don't fix it"
As a Broadcast Engineer, I have found that sometimes it may be easier to work 
with what you have and just keep patching.  In this case it is broke, now it is 
time to fix it once and for all.
Scrap these two troublesome packages and develop something new.  One Package 
not another combine this or patch that combination.
Make the package as an option in a update or a stand alone option to install.  
Lets say one is developed, the user installs it via a package handler or via 
the terminal, it uninstalls ALSA and Pulse from the system then installs the 
new audio package..  I know that this is easier said then done, but this issue 
has gone on for years.  So lets start on something and table any fixes or 
patches for what is there now so there is time for new development.

What most have forgotten here is that the everyday user; not someone like me 
that can grasp most of the infomation above, is not going to understand any of 
what has transpired within all these posts.  Ubuntu is showing up more and more 
in many consumer products and especially Home Theater systems in one form or 
another.  It is a Plug n` Play world whether it is Linux or Microsoft.  Having 
to jump through hoops to set up the audio is not going to slide by the user 
much longer when using this distro or any distro using ALSA and Pulseaudio.  
Over the years things have changed in this distro for the better as in speed 
and efficiency.  By my experience using this distro especially this released 
version 13.10, it seems the audio has not advanced, but is actually degrading 
and falling behind technology.

So I can finally enjoy my Home Theater System here, I have retired to using 
just the 5.1 S/PDIF output for XBMC and just deal with stereo output for all 
the other media players.
I would suggest to keep this bug report open until there is a final decision 
what is going to be done with this ongoing audio issue.

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https://bugs.launchpad.net/bugs/1249705

Title:
  HDMI output not available in 13.10

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