[hardluck1024]

Alright, so I have been trying everything to get my Asus AT3N7A-I to send HDMI audio to my Vizio VL470M LCD TV again. I had it working on karmic 9.10 for about a week when suddenly HDMI had no signal. I am currently using Ubuntu 10.04 64 Lucid. I’ve installed the driver a few different ways, by downloading drivers off nvidia.com and using hardware drivers and activate, which I’m currently using.

The first thing I noticed in nvidia-setting that my DFP-0 doesn’t show up, only VGA or CRT-0. I read that some Digital Flat Panels need a custom edid. So I acquired edid from nvidia-settings and then added a line in my /etc/X11/xorg.conf

Option “CustomEDID” “DFP-0:/home/htpc/edid.bin”

After restarting X I could setup twinview and clone the VGA output.

Code:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildd@palmer)  Fri Apr  9 10:35:18 UTC 2010

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection


Section "Module"
    Load           "glx"
EndSection


Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "VIZ VL470M"
    HorizSync       31.0 - 70.0
    VertRefresh     50.0 - 77.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "ION"
    Option        "DynamicTwinView"     "false"
    Option        "NoFlip"              "false"
    Option         "FlatPanelProperties" "Scaling = Native"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT: nvidia-auto-select +0+0, DFP: 1920x1080 +0+0"
    Option         "UseDisplayDevice" "CRT-0, DFP-0"
    Option         "ConnectedMonitor" "CRT-0, DFP-0"
    Option         "CustomEDID" "DFP-0:/home/htpc/edid.bin"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Extensions"
        Option  "Composite"           "false"
EndSection

Video works perfect after that but no HDMI audio. I made sure in terminal alsamixer that everything was unmuted.

The first thing I did was ran cat /proc/asound/version

Code:

Advanced Linux Sound Architecture Driver Version 1.0.21.

I have also tried to upgrade the drivers to the new ALSA 1.0.23 by using this method

http://monespaceperso.org/blog-en/2010/0...ynx-10-04/

Currently I havent upgrade ALSA at all.

I have heard that the newer nvidia drivers, late 195’s breaks the hdmi audio, but I have tried almost every version of of the nvidia driver even the 185 on 9.04 and 9.10.

aplay –l output

Code:

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: VT1708S Analog [VT1708S Analog]
  Subdevices: 2/2
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
card 0: NVidia [HDA NVidia], device 1: VT1708S Digital [VT1708S Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

I’ve have also tried setting up a .asoundrc. I have put it in two directories/etc/.asoundrc and my home directory.

Code:

pcm.dmixer {
type dmix
ipc_key 1024
ipc_key_add_uid false
ipc_perm 0660
slave {
pcm "hw:0,3"
rate 48000
channels 2
period_time 0
period_size 1024
buffer_time 0
buffer_size 4096
}
}
pcm.!default {
type plug
slave.pcm "dmixer"
}

I am not sure if it has something to do with my Vizio but I hope not.
I think I have followed every post on the net on every distro imaginable including XBMC Live optimized for NVidia Ion. I’m going crazy over this.