[mythtv-users] No HDMI audio
stichnot at gmail.com
Tue Jun 23 09:24:24 UTC 2009
Sorry for yet another digital audio thread.
I can't get any audio whatsoever to go through my HDMI connection.
Here are some details of my setup:
- Gigabyte GA-E7AUM-DS2H motherboard
- MythDora 10.21 (kernel 220.127.116.11-159.fc10.i686)
- alsa 1.0.20
- nvidia driver 180.51
- Vizio TV model VW32L
The alsa version is a little weird. "yum list alsa\*" shows version
1.0.20-1.fc10 of alsa-lib.i386, alsa-lib-devel.i386, and
alsa-utils.i386, yet "cat /proc/asound/version" gives 1.0.18a.
I even went so far as to disable onboard audio in the BIOS setup,
leaving HDMI audio enabled. Here are the results of aplay:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevice #0: subdevice #0
$ aplay -L
HDA NVidia, NVIDIA HDMI
HDMI Audio Output
Discard all samples (playback) or generate zero samples (capture)
Alsamixer shows just one control, IEC958, and I have unmuted it.
No audio with Myth. No audio with something like "mplayer -ao
alsa:device=hdmi -afm hwac3 1071_20090620215900.mpg". No audio with
"speaker-test -D hdmi -c 2". I tried following Allen's tips in
http://www.mythtv.org/wiki?title=AllensDigitalAudioHowto (but at 2:00
in the morning I'm not sure I tried every combination). Pulseaudio
appears not to be installed except for pulseaudio-libs.
Interestingly, if I ctrl-alt-F2 to switch into a console window, aplay
says there are no devices. I wonder why is that?
Any suggestions on how to proceed? Does anyone have positive
experience with HDMI audio on this motherboard, the Gigabyte
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