Hi alsa-users
I've got my Linux PC hooked up to my TV through HDMI, with the
intention of carrying both audio and video.
The problem is that it doesn't work normally:
media@htpc:~$ aplay -D "hdmi:CARD=HDMI" /usr/share/sounds/question.wav
Playing WAVE '/usr/share/sounds/question.wav' : Signed 16 bit Little
Endian, Rate 44100 Hz, Mono
aplay: set_params:966: Channels count non available
I suspect that it has something to do with the fact that it's device
0,3 instead of 0,0 but I don't know enough about alsa to say for sure:
root@htpc:/etc# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@htpc:/etc# aplay -L
hdmi:CARD=HDMI
HDA ATI HDMI, ATI HDMI
HDMI Audio Output
null
Discard all samples (playback) or generate zero samples (capture)
Now, I've been able to work around it with asoundconf which created me
this configuration file:
# ALSA library configuration file managed by asoundconf(1).
#
# MANUAL CHANGES TO THIS FILE WILL BE OVERWRITTEN!
#
# Manual changes to the ALSA library configuration should be implemented
# by editing the ~/.asoundrc file, not by editing this file.
!defaults.pcm.card HDMI
defaults.ctl.card HDMI
defaults.pcm.device 3
defaults.pcm.subdevice -1
defaults.pcm.nonblock 1
defaults.pcm.ipc_key 5678293
defaults.pcm.ipc_gid audio
defaults.pcm.ipc_perm 0660
defaults.pcm.dmix.max_periods 0
defaults.pcm.dmix.rate 48000
defaults.pcm.dmix.format "unchanged"
defaults.pcm.dmix.card defaults.pcm.card
defaults.pcm.dmix.device defaults.pcm.device
defaults.pcm.dsnoop.card defaults.pcm.card
defaults.pcm.dsnoop.device defaults.pcm.device
defaults.pcm.front.card defaults.pcm.card
defaults.pcm.front.device defaults.pcm.device
defaults.pcm.rear.card defaults.pcm.card
defaults.pcm.rear.device defaults.pcm.device
defaults.pcm.center_lfe.card defaults.pcm.card
defaults.pcm.center_lfe.device defaults.pcm.device
defaults.pcm.side.card defaults.pcm.card
defaults.pcm.side.device defaults.pcm.device
defaults.pcm.surround40.card defaults.pcm.card
defaults.pcm.surround40.device defaults.pcm.device
defaults.pcm.surround41.card defaults.pcm.card
defaults.pcm.surround41.device defaults.pcm.device
defaults.pcm.surround50.card defaults.pcm.card
defaults.pcm.surround50.device defaults.pcm.device
defaults.pcm.surround51.card defaults.pcm.card
defaults.pcm.surround51.device defaults.pcm.device
defaults.pcm.surround71.card defaults.pcm.card
defaults.pcm.surround71.device defaults.pcm.device
defaults.pcm.iec958.card defaults.pcm.card
defaults.pcm.iec958.device defaults.pcm.device
defaults.pcm.modem.card defaults.pcm.card
defaults.pcm.modem.device defaults.pcm.device
defaults.pcm.file_format "raw"
defaults.pcm.file_truncate true
defaults.rawmidi.card 0
defaults.rawmidi.device 0
defaults.rawmidi.subdevice -1
defaults.hwdep.card 0
defaults.hwdep.device 0
defaults.timer.class 2
defaults.timer.sclass 0
defaults.timer.card 0
defaults.timer.device 0
defaults.timer.subdevice 0
defaults.namehint.showall off
defaults.namehint.basic on
defaults.namehint.extended off
And it works for the most part, but being a little obsessive I would
like to make this work in a more standard way.
This box has been going for a few months, happily running XBMC, but
the reason it's come up again is because XBMC is moving to a
configuration system where you choose your audio device from a list,
and with my asound.conf defined as it is, I'm not able to select my
device (I suspect because it doesn't show up in aplay -L):
media@htpc:~$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
Appreciate any pointers even if it's just a simple config file I can
use that will automatically use Device 3 when I select Card 0 (if that
is indeed what's causing my hassles).
Thanks
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