[mythtv-users] No HDMI audio
allen.p.edwards at gmail.com
Tue Jun 23 13:52:23 UTC 2009
On Tue, Jun 23, 2009 at 2:24 AM, Jim Stichnoth <stichnot at gmail.com> wrote:
> 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 126.96.36.199-159.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]
> Subdevices: 1/1
> 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
A simple test is to set alsa up with
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.
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