[mythtv-users] No HDMI audio

Phill Wiggin alamar at gmail.com
Tue Jun 23 17:57:52 UTC 2009

On Tue, Jun 23, 2009 at 12:54 PM, Jim Stichnoth <stichnot at gmail.com> wrote:

> On Tue, Jun 23, 2009 at 6:52 AM, Allen Edwards<allen.p.edwards at gmail.com>
> wrote:
> > A simple test is to set alsa up with
> >
> >   pcm.!default {
> >      type plug
> >      slave.pcm "hdmi"
> >   }
> >
> > and put a CD in and issue this command
> >
> > mplayer -cache 500 -cdrom-device /dev/cdrom cdda://
> >
> > Also, don't ignore settings in your TV.  It would be great if you had
> > another hdmi device to use to test the TV.
> Thanks.  I will try that in my alsa config (I might have already tried
> it, but it was 2am...).
> I tried a direct HDMI connection between the TV and the Dish VIP211,
> and video and audio were just fine.
> I tried connecting a Zotac ION box to the TV via HDMI, but they refuse
> to talk to each other, even at BIOS startup time.  There's another
> thread here about that, suggesting HDCP problems, so I can see that
> I'm in for even more fun.
> Jim


  I got my Zotac ION (zION) board working with HDMI while using the nvidia
drivers (180.60, IIRC).
I used Allen' guide on the mythtv.org wiki as guidance.

My experience is abbreviated at: http://www.zoomthingie.com/wordpress/?cat=5

Specifically the post "zION - Now with Sound!"

I made an .asoundrc with pcm.slave= "hdmi" and I had to disable AC3
Passthrough in MythTV otherwise, I got audio problems in HD (and some .avi)

Also, I tried disabling the analog audio (as suggested somewhere I read).
That really caused problems for me, so I re-enabled it.

I'm running Gentoo with the 2.6.30 kernel, so it's alsa 1.0.20, I believe,
and alsa support packages (alsa-util, etc) at 1.0.20.

I was able to get sound from the commandline with:

aplay -d hdmi FatBastard.wav

... Yeah, a Fat Bastard quote from Austin Powers.... It was the first thing
I found. =\
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