Unnecessary Audio output switching. Output profile changing by itself.
Stuart Smith
stuartksmith at gmail.com
Mon Sep 5 16:56:39 UTC 2016
Using the built-in audio, the Profile changes from Analog Stereo (which is
connected to speaker) to Digital Stereo (IEC958) Output (not connected) and
back again randomly. No action being taken on the system at all. I have
attempted to time this, but the timing appears random - ranges from several
minutes to a couple seconds. I'm watching it happen right now before my
eyes while I'm typing.
First, the system:
System: Circa 2006 Asus Maximus Formula SE
On-Board audio: Intel AC1988B
Video Card w/audio: EVGA nVidia GTX780
aplay -a output:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD1988B Analog [AD1988B Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD1988B Digital [AD1988B Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 2: AD1988B Alt Analog [AD1988B Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
nVidia card supplies video to three monitors using the DP, HDMI, and DVI
ports. The HDMI audio is not being used (no speakers on the monitor) and I
have it set to OFF in Audio Hardware Setup.
Audio is an external speaker set connected to the analog lineout (card 0/
device 0).
Digital out is not connected (it has three possible connections - optical,
digital RCA, separate speaker RCA).
I presume automatically changing outputs would be great if you have a
laptop and you plug in headphones, but clearly this random behavior makes
audio unusable for me.
I have altered this behavior by editing /etc/pulse/default.pa and
commenting out the line load-module module-switch-on-port-available and
this stopped the random switching.
Attached output of "amixer -c 0 contents" when analog out is use and after
system switched itself to digital fro comparison.
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numid=47,iface=CARD,name='CD Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=52,iface=CARD,name='Front Headphone Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=44,iface=CARD,name='Front Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=46,iface=CARD,name='Line Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=50,iface=CARD,name='Line Out CLFE Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=48,iface=CARD,name='Line Out Front Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=51,iface=CARD,name='Line Out Side Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=49,iface=CARD,name='Line Out Surround Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=45,iface=CARD,name='Rear Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=53,iface=CARD,name='SPDIF Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=43,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=42,iface=MIXER,name='Master Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=39,step=0
: values=34
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=12,iface=MIXER,name='Headphone Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=11,iface=MIXER,name='Headphone Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=62,iface=MIXER,name='PCM Playback Volume'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
: values=255,255
| dBscale-min=-51.00dB,step=0.20dB,mute=0
numid=33,iface=MIXER,name='Front Mic Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=16,iface=MIXER,name='Front Mic Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=15,iface=MIXER,name='Front Mic Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=2,iface=MIXER,name='Front Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=1,iface=MIXER,name='Front Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=39,39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=4,iface=MIXER,name='Surround Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=3,iface=MIXER,name='Surround Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=39,39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=7,iface=MIXER,name='Center Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=5,iface=MIXER,name='Center Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=39,step=0
: values=39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=8,iface=MIXER,name='LFE Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=6,iface=MIXER,name='LFE Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=39,step=0
: values=39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=35,iface=MIXER,name='Line Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=2,2
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=20,iface=MIXER,name='Line Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=19,iface=MIXER,name='Line Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=22,iface=MIXER,name='CD Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=21,iface=MIXER,name='CD Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=28,iface=MIXER,name='Capture Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=30,iface=MIXER,name='Capture Switch',index=1
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=32,iface=MIXER,name='Capture Switch',index=2
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=27,iface=MIXER,name='Capture Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=54,step=0
: values=54,54
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=29,iface=MIXER,name='Capture Volume',index=1
; type=INTEGER,access=rw---R--,values=2,min=0,max=54,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=31,iface=MIXER,name='Capture Volume',index=2
; type=INTEGER,access=rw---R--,values=2,min=0,max=54,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=14,iface=MIXER,name='Loopback Mixing'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=1
numid=41,iface=MIXER,name='IEC958 Default PCM Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=37,iface=MIXER,name='IEC958 Playback Con Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=38,iface=MIXER,name='IEC958 Playback Pro Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=39,iface=MIXER,name='IEC958 Playback Default'
; type=IEC958,access=rw------,values=1
: values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=36,iface=MIXER,name='IEC958 Playback Source'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'PCM'
; Item #1 'ADC1'
; Item #2 'ADC2'
; Item #3 'ADC3'
: values=0
numid=40,iface=MIXER,name='IEC958 Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=23,iface=MIXER,name='Auto-Mute Mode'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=1
numid=55,iface=MIXER,name='Beep Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=54,iface=MIXER,name='Beep Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=15,step=0
: values=15
| dBscale-min=-45.00dB,step=3.00dB,mute=0
numid=13,iface=MIXER,name='Independent HP'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=0
numid=24,iface=MIXER,name='Input Source'
; type=ENUMERATED,access=rw------,values=1,items=5
; Item #0 'Front Mic'
; Item #1 'Rear Mic'
; Item #2 'Line'
; Item #3 'CD'
; Item #4 'Stereo Mix'
: values=2
numid=25,iface=MIXER,name='Input Source',index=1
; type=ENUMERATED,access=rw------,values=1,items=5
; Item #0 'Front Mic'
; Item #1 'Rear Mic'
; Item #2 'Line'
; Item #3 'CD'
; Item #4 'Stereo Mix'
: values=0
numid=26,iface=MIXER,name='Input Source',index=2
; type=ENUMERATED,access=rw------,values=1,items=5
; Item #0 'Front Mic'
; Item #1 'Rear Mic'
; Item #2 'Line'
; Item #3 'CD'
; Item #4 'Stereo Mix'
: values=0
numid=34,iface=MIXER,name='Rear Mic Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=18,iface=MIXER,name='Rear Mic Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=17,iface=MIXER,name='Rear Mic Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=10,iface=MIXER,name='Side Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=9,iface=MIXER,name='Side Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=39,39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=57,iface=PCM,name='Capture Channel Map'
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=56,iface=PCM,name='Playback Channel Map'
; type=INTEGER,access=r----R--,values=8,min=0,max=36,step=0
: values=3,4,0,0,0,0,0,0
| container
| chmap-fixed=FL,FR
| chmap-fixed=FL,FR,RL,RR
| chmap-fixed=FL,FR,RL,RR,FC,LFE
| chmap-fixed=FL,FR,RL,RR,FC,LFE,SL,SR
numid=58,iface=PCM,name='Playback Channel Map',device=1
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=60,iface=PCM,name='Capture Channel Map',device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=61,iface=PCM,name='Capture Channel Map',index=1,device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=59,iface=PCM,name='Playback Channel Map',device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
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numid=47,iface=CARD,name='CD Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=52,iface=CARD,name='Front Headphone Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=44,iface=CARD,name='Front Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=46,iface=CARD,name='Line Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=50,iface=CARD,name='Line Out CLFE Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=48,iface=CARD,name='Line Out Front Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=51,iface=CARD,name='Line Out Side Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=49,iface=CARD,name='Line Out Surround Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=45,iface=CARD,name='Rear Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=53,iface=CARD,name='SPDIF Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=43,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=42,iface=MIXER,name='Master Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=39,step=0
: values=35
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=12,iface=MIXER,name='Headphone Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=11,iface=MIXER,name='Headphone Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=39,39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=62,iface=MIXER,name='PCM Playback Volume'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
: values=254,254
| dBscale-min=-51.00dB,step=0.20dB,mute=0
numid=33,iface=MIXER,name='Front Mic Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=16,iface=MIXER,name='Front Mic Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=15,iface=MIXER,name='Front Mic Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=2,iface=MIXER,name='Front Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=1,iface=MIXER,name='Front Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=39,39
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=4,iface=MIXER,name='Surround Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=3,iface=MIXER,name='Surround Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=7,iface=MIXER,name='Center Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=5,iface=MIXER,name='Center Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=39,step=0
: values=0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=8,iface=MIXER,name='LFE Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=6,iface=MIXER,name='LFE Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=39,step=0
: values=0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=35,iface=MIXER,name='Line Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=2,2
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=20,iface=MIXER,name='Line Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=19,iface=MIXER,name='Line Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=22,iface=MIXER,name='CD Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=21,iface=MIXER,name='CD Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=28,iface=MIXER,name='Capture Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=30,iface=MIXER,name='Capture Switch',index=1
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=32,iface=MIXER,name='Capture Switch',index=2
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=27,iface=MIXER,name='Capture Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=54,step=0
: values=54,54
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=29,iface=MIXER,name='Capture Volume',index=1
; type=INTEGER,access=rw---R--,values=2,min=0,max=54,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=31,iface=MIXER,name='Capture Volume',index=2
; type=INTEGER,access=rw---R--,values=2,min=0,max=54,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=14,iface=MIXER,name='Loopback Mixing'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=1
numid=41,iface=MIXER,name='IEC958 Default PCM Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=37,iface=MIXER,name='IEC958 Playback Con Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=38,iface=MIXER,name='IEC958 Playback Pro Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=39,iface=MIXER,name='IEC958 Playback Default'
; type=IEC958,access=rw------,values=1
: values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=36,iface=MIXER,name='IEC958 Playback Source'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'PCM'
; Item #1 'ADC1'
; Item #2 'ADC2'
; Item #3 'ADC3'
: values=0
numid=40,iface=MIXER,name='IEC958 Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=23,iface=MIXER,name='Auto-Mute Mode'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=1
numid=55,iface=MIXER,name='Beep Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=54,iface=MIXER,name='Beep Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=15,step=0
: values=15
| dBscale-min=-45.00dB,step=3.00dB,mute=0
numid=13,iface=MIXER,name='Independent HP'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=0
numid=24,iface=MIXER,name='Input Source'
; type=ENUMERATED,access=rw------,values=1,items=5
; Item #0 'Front Mic'
; Item #1 'Rear Mic'
; Item #2 'Line'
; Item #3 'CD'
; Item #4 'Stereo Mix'
: values=2
numid=25,iface=MIXER,name='Input Source',index=1
; type=ENUMERATED,access=rw------,values=1,items=5
; Item #0 'Front Mic'
; Item #1 'Rear Mic'
; Item #2 'Line'
; Item #3 'CD'
; Item #4 'Stereo Mix'
: values=0
numid=26,iface=MIXER,name='Input Source',index=2
; type=ENUMERATED,access=rw------,values=1,items=5
; Item #0 'Front Mic'
; Item #1 'Rear Mic'
; Item #2 'Line'
; Item #3 'CD'
; Item #4 'Stereo Mix'
: values=0
numid=34,iface=MIXER,name='Rear Mic Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=18,iface=MIXER,name='Rear Mic Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=17,iface=MIXER,name='Rear Mic Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=0,0
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=10,iface=MIXER,name='Side Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=9,iface=MIXER,name='Side Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=39,step=0
: values=0,0
| dBscale-min=-58.50dB,step=1.50dB,mute=0
numid=57,iface=PCM,name='Capture Channel Map'
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=56,iface=PCM,name='Playback Channel Map'
; type=INTEGER,access=r----R--,values=8,min=0,max=36,step=0
: values=0,0,0,0,0,0,0,0
| container
| chmap-fixed=FL,FR
| chmap-fixed=FL,FR,RL,RR
| chmap-fixed=FL,FR,RL,RR,FC,LFE
| chmap-fixed=FL,FR,RL,RR,FC,LFE,SL,SR
numid=58,iface=PCM,name='Playback Channel Map',device=1
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=60,iface=PCM,name='Capture Channel Map',device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=61,iface=PCM,name='Capture Channel Map',index=1,device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
numid=59,iface=PCM,name='Playback Channel Map',device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
: values=0,0
| container
| chmap-fixed=FL,FR
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