[mythtv-users] Audio on HDMI - Need more suggestions

Steven Adeff adeffs.mythtv at gmail.com
Sat Jul 24 21:30:58 UTC 2010


On Sat, Jul 24, 2010 at 10:32 AM, Don Brett <dlbrett at zoominternet.net> wrote:
> Bill Williamson wrote:
>>
>> Excuse topquote, on phone
>>
>> That log you posted shows 1.0.21 mixed with 1.0.22.
>>
>> 1. Versions need to be the same.
>> 2. You need at least 1.0.23.
>>
>>
>> On Saturday, July 24, 2010, Don Brett <dlbrett at zoominternet.net> wrote:
>>
>>>
>>> Jurgen Kramer wrote:
>>>
>>> On Thu, 2010-07-22 at 23:03 -0400, Don Brett wrote:
>>>
>>>
>>> I have a new installation of MythDora-12, works pretty well, but I
>>> haven't gotten audio onto the HDMI wire yet.  The PC has an Asus motherboard
>>> with nvidia built-in sound, the video board is an nvidia-220.  I followed
>>> this tutorial (which is pretty good):
>>>
>>>
>>> http://wiki.xbmc.org/?title=HOW-TO_set_up_HDMI_audio_on_nVidia_GeForce_G210%2C_GT220%2C_or_GT240
>>>
>>> It looks like everything is right, but still no sound on the HDMI
>>> connection.  So far:
>>>
>>> - built and installed alsa-driver from source
>>> - added "enable_msi=0 probe_mask=0xffff,0xfff2" to
>>> /etc/modprobe.d/dist-alsa.conf
>>> - created this "/etc/pulse/default.pa", and put "load-module
>>> module-alsa-sink device=hw:0,3" into it
>>> - unmuted the s/pdif device with alsamixer
>>> - added user mythtv to the audio group
>>> - changed mythtv "audio output device" to ALSA:plughw:0,3
>>> - sound works through the regular speakers
>>> - this test runs "speaker-test -c6 -twav -Dplughw:0,3", but nothing comes
>>> out of the speakers
>>>
>>>
>>> Anyone have a suggestion on what to try next?  By the way, is pulse-audio
>>> needed for this...everyone seems to talk about it, but the tutorial barely
>>> mentions it.
>>>
>>>
>>> PS - ...and I got this from aplay -l
>>>
>>> [mythtv at vanson ~]$ aplay -l
>>> **** List of PLAYBACK Hardware Devices ****
>>> card 0: NVidia [HDA NVidia], device 0: ALC883 Analog [ALC883 Analog]
>>>  Subdevices: 1/1
>>>  Subdevice #0: subdevice #0
>>> card 0: NVidia [HDA NVidia], device 1: ALC883 Digital [ALC883 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
>>> [mythtv at vanson ~]$
>>>
>>>
>>>
>>> Can you try without "probe_mask=0xffff,0xfff2" and see if maybe another
>>> device like 0,5, 0,7, 0,8 (or whichever devices will appear) will be the
>>> actual device you need? On my GT220 I need to use 0,7 (In my case it's
>>> 1,7 because the onboard audio is device 0).
>>>
>>>
>>> I removed the probe_mask, but I'm not really sure how to check it.  So, I
>>> ran "alsa-info.sh" and it's output is here:
>>>
>>>
>>> http://www.alsa-project.org/db/?f=1154be82a2f59d3d1276ccdf854e9b21a3e17f85
>>>
>
> Good catch, I only updated alsa-driver, as the tutorial instructed, but it
> looks like the old driver is still being used.  The tutorial has a note for
> Ubuntu users to remove the "linux-backports-modules-alsa-`uname -r" package.
>  That looks like that package manages which driver is used.  Perhaps I need
> to do something to make mythdora use the new driver.
>
> The original system path is: (dated 4-5-2010)
> "/lib/modules/2.6.32.11-99.fc12.i686/kernel/...."
>
> It looks like the drivers are installed under this path: (dated 7-21-2010)
> "/lib/modules/2.6.32.16-141"
>
> ....so it looks like they are installed, but not used (?).

First, do
cat /proc/asound/version
you need to have version 1.0.23 installed.

-- 
Steve
http://www.mythtv.org/wiki/User:Steveadeff
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