Hello. I want to be able to play mono sound using HDMI device. Strange thing is
I can play mono file when HDMI is selected as default in .asoundrc, but I can
not do it if I use device explicitly in aplay.
I play file like this:
localhost ~ # aplay -D hdmi:CARD=HDMI,DEV=2 testmono.wav
Playing WAVE 'testmono.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
aplay: set_params:1345: Channels count non available
localhost ~ # aplay -D default testmono.wav
Playing WAVE 'testmono.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
My .asoundrc looks like this:
defaults.pcm.card 0
defaults.pcm.device 8
Output of aplay -L and -l:
localhost ~ # aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
hdmi:CARD=HDMI,DEV=0
HDA Intel HDMI, HDMI 0
HDMI Audio Output
hdmi:CARD=HDMI,DEV=1
HDA Intel HDMI, HDMI 1
HDMI Audio Output
hdmi:CARD=HDMI,DEV=2
HDA Intel HDMI, HDMI 2
HDMI Audio Output
hdmi:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 3
HDMI Audio Output
hdmi:CARD=HDMI,DEV=4
HDA Intel HDMI, HDMI 4
HDMI Audio Output
default:CARD=PCH
HDA Intel PCH, ALC662 rev1 Analog
Default Audio Device
sysdefault:CARD=PCH
HDA Intel PCH, ALC662 rev1 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
localhost ~ # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
What am I doing wrong? Can I configure ALSA so it can play mono file with
'hdmi:CARD=HDMI,DEV=2'?
If there is not enough information here, please tell me what else is needed.
Thanks!
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