[mythtv-users] Lost HDMI sound in Media Library->Search Internet videos after move to Mythbuntu 12.04

[HP-mini]

On Wed, 2012-10-31 at 03:34 -0400, Ian Evans wrote:
> On Tue, Oct 30, 2012 at 6:35 AM, Ian Evans <dheianevans at gmail.com> wrote:
> > So my 12.04 sound score card:
> >
> > Mythvideo and recordings: sound is great, no change since my 10.04 install
> > Dropping to desktop: sound in browser
> > MythMusic: sound
> > Myth Internet Radio (new in .26): sound
> >
> > Browse Internet Video & Search Internet Video: no sound
> > Information Center->News Feeds (podcasts): skipping, choppy sound
> 
> Okay...fixed it. Used info in this page:
> http://omappedia.org/wiki/Ubuntu_PA#PA_through_HDMI
> 
> #load-module module-udev-detect
> load-module module-alsa-sink device=plughw:1,9 sink_name=output
> ### Make some devices default
> set-default-sink output
> 
That entry is needed when you are using pulse audio server for output
(or your browser defaults to system setting) & your pulse is an older
version that did not enumerate more than 1 HDMI output per GPU.

Old version of alsa (<1.0.24) had a similar problem & that was when the
use of modprobe options probe_mask was en vogue.
Alsa will open as many audio devices per card as it supports, this is 2
for most nVidia GPU.

Some GPU have more than 2 codecs (MCPs IONs), the latter generation uses
2 codecs & mux them to 4 ports.

This could have meant you could have 4 different HDA streams from MCP
mobo.
You can only have 2 HDA streams now.

I didn't think mythbuntu installed pulse ??