snd_hda, sound in both speaker and headphones
Alex Ali
alex540 at gmail.com
Fri Apr 6 22:11:15 UTC 2007
I'm having the same problem that few other people have reported. Sound
comes from both the internal speaker and headphones. Setting the mixer
to 0:0 doesn't mute the speaker either.
It's on a Dell OptiPlex 745 with Intel onboard audio and the driver from:
http://people.freebsd.org/~ariff/lowlatency/sndkld_releng6_i386_lowlatency.tar.gz
I've included the usual debugging info.
plato:~$ uname -a
FreeBSD plato 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri Jan 12 11:05:30
UTC 2007 root at dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP i386
plato:~$ sysctl debug.bootverbose=1
debug.bootverbose: 0 -> 1
plato:~$ kldunload snd_hda
plato:~$ kldload snd_hda
plato:~$ dmesg | grep ^pcm
pcm0: <Intel 82801H High Definition Audio Controller> mem
0xdfdfc000-0xdfdfffff irq 16 at device 27.0 on pci0
pcm0: <HDA Codec: Analog Device AD1983>
pcm0: <HDA Driver Revision: 20070404_0044>
pcm0: detached
pcm0: <Intel 82801H High Definition Audio Controller> mem
0xdfdfc000-0xdfdfffff irq 16 at device 27.0 on pci0
pcm0: TCSEL: 0x00 -> 0x00
pcm0: DMA Coherency: Uncacheable / vendor=0x8086
pcm0: [MPSAFE]
pcm0: hdac_dma_alloc: size=1024 -> roundsz=1024
pcm0: hdac_dma_alloc: size=2048 -> roundsz=2048
pcm0: HDA_DEBUG: HDA Config: on=0x00000000 off=0x00000000
pcm0: HDA_DEBUG: Starting CORB Engine...
pcm0: HDA_DEBUG: Starting RIRB Engine...
pcm0: HDA_DEBUG: Enabling controller interrupt...
pcm0: HDA_DEBUG: Scanning HDA codecs...
pcm0: HDA_DEBUG: Probing codec: 0
pcm0: HDA_DEBUG: startnode=1 endnode=2
pcm0: HDA_DEBUG: Found AFG nid=1 [startnode=1 endnode=2]
pcm0: HDA_DEBUG: Parsing AFG nid=1 cad=0
pcm0: Vendor: 0x000011d4
pcm0: Device: 0x00001983
pcm0: Revision: 0x00000004
pcm0: Stepping: 0x00000000
pcm0: PCI Subvendor: 0x01da1028
pcm0: Nodes: start=2 endnode=22 total=20
pcm0: CORB size: 256
pcm0: RIRB size: 256
pcm0: Streams: ISS=4 OSS=4 BSS=0
pcm0: GPIO: count=2 [0x40000002]
pcm0: hdac_widget_connection_parse: GHOST: nid=2 j=0 entnum=4 index=0
res=0x00000401
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=2 entries=2 found=2
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=4 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=5 entries=2 found=2
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=6 entries=2 found=2
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=7 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=10 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=11 entries=4 found=4
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=12 entries=2 found=2
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=13 entries=2 found=2
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=14 entries=3 found=3
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=15 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=17 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=18 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=19 entries=1 found=1
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=20 entries=4 found=4
pcm0: HDA_DEBUG: hdac_widget_connection_parse: nid=21 entries=4 found=15
pcm0: HDA_DEBUG: Parsing Ctls...
pcm0: HDA_DEBUG: Parsing vendor patch...
pcm0: HDA_DEBUG: Building AFG tree...
pcm0: HDA_DEBUG: HWiP: HDA Widget Parser - Revision 1
pcm0: HDA_DEBUG: HWiP: Found 3 DAC path using HDA_PARSE_MIXER strategy.
pcm0: HDA_DEBUG: AFG commit...
pcm0: HDA_DEBUG: Ctls commit...
pcm0: [ 1] Ctl nid=5 Bind to NONE
pcm0: [ 2] Ctl nid=6 Bind to NONE
pcm0: [ 3] Ctl nid=7 Bind to NONE
pcm0: [ 7] Ctl nid=18 Bind to NONE
pcm0: [ 8] Ctl nid=19 Bind to NONE
pcm0: HDA_DEBUG: PCMDIR_PLAY setup...
pcm0: HDA_DEBUG: PCMDIR_REC setup...
pcm0: HDA_DEBUG: OSS mixer initialization...
pcm0: Mixer "vol":
pcm0: Mixer "pcm":
pcm0: Mixer "speaker":
pcm0: Mixer "mic":
pcm0: Mixer "rec":
pcm0: HDA_DEBUG: Registering PCM channels...
pcm0: hdac_dma_alloc: size=4096 -> roundsz=4096
pcm0: sndbuf_setmap 7cdee000, 4000; 0xe6a7c000 -> 7cdee000
pcm0: hdac_dma_alloc: size=4096 -> roundsz=4096
pcm0: sndbuf_setmap 7cde5000, 4000; 0xe6a80000 -> 7cde5000
pcm0: <HDA Codec: Analog Device AD1983>
pcm0: <HDA Codec ID: 0x11d41983>
pcm0: <HDA Driver Revision: 20070404_0044>
pcm0:
pcm0: HDA config/quirks: forcestereo ivref ivref50 ivref80 ivref100 vref
pcm0:
pcm0: +-------------------+
pcm0: | DUMPING HDA NODES |
pcm0: +-------------------+
pcm0:
pcm0: Default Parameter
pcm0: -----------------
pcm0: Stream cap: 0x00000001
pcm0: Format: PCM
pcm0: PCM cap: 0x000e007f
pcm0: PCM size: 16 20 24
pcm0: PCM rate: 8 11 16 22 32 44 48
pcm0: IN amp: 0x00000000
pcm0: OUT amp: 0x80053f3d
pcm0:
pcm0: nid: 2 [DIGITAL] [DISABLED]
pcm0: name: audio output
pcm0: widget_cap: 0x00030311
pcm0: Parse flags: 0x00000000
pcm0: Ctl flags: 0x00000000
pcm0: Stream cap: 0x00000005
pcm0: Format: AC3 PCM
pcm0: PCM cap: 0x00020060
pcm0: PCM size: 16
pcm0: PCM rate: 44 48
pcm0: connections: 2
pcm0: |
pcm0: + <- nid=1 [GHOST!] [UNKNOWN]
pcm0: |
pcm0: + <- nid=4 [audio input]
pcm0:
pcm0: nid: 3 [ANALOG]
pcm0: name: audio output
pcm0: widget_cap: 0x00000441
pcm0: Parse flags: 0x00000001
pcm0: Ctl flags: 0x00000011
pcm0: Stream cap: 0x00000001
pcm0: Format: PCM
pcm0: PCM cap: 0x000e007f
pcm0: PCM size: 16 20 24
pcm0: PCM rate: 8 11 16 22 32 44 48
pcm0: connections: 0
pcm0:
pcm0: nid: 4 [ANALOG]
pcm0: name: audio input
pcm0: widget_cap: 0x00100501
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000800
pcm0: Stream cap: 0x00000001
pcm0: Format: PCM
pcm0: PCM cap: 0x000e007f
pcm0: PCM size: 16 20 24
pcm0: PCM rate: 8 11 16 22 32 44 48
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=20 [audio selector]
pcm0:
pcm0: nid: 5 [ANALOG]
pcm0: name: pin: line out (jack)
pcm0: widget_cap: 0x00400185
pcm0: Parse flags: 0x00000001
pcm0: Ctl flags: 0x00000000
pcm0: Pin cap: 0x00000017
pcm0: ISC TRQD OUT : UNSOL
pcm0: Pin config: 0x01014010
pcm0: Pin control: 0x00000040 OUT
pcm0: Output amp: 0x80053f3d
pcm0: mute=1 step=63 size=5 offset=61
pcm0: connections: 2
pcm0: |
pcm0: + <- nid=3 [audio output]
pcm0: |
pcm0: + <- nid=14 [audio mixer] (selected)
pcm0:
pcm0: nid: 6 [ANALOG]
pcm0: name: pin: headphones out (jack)
pcm0: widget_cap: 0x00400185
pcm0: Parse flags: 0x00000001
pcm0: Ctl flags: 0x00000000
pcm0: Pin cap: 0x0000001f
pcm0: ISC TRQD HP OUT : UNSOL
pcm0: Pin config: 0x0221101f
pcm0: Pin control: 0x000000c0 HP OUT
pcm0: Output amp: 0x80053f3d
pcm0: mute=1 step=63 size=5 offset=61
pcm0: connections: 2
pcm0: |
pcm0: + <- nid=3 [audio output]
pcm0: |
pcm0: + <- nid=14 [audio mixer] (selected)
pcm0:
pcm0: nid: 7 [ANALOG]
pcm0: name: pin: speaker (fixed)
pcm0: widget_cap: 0x00400104
pcm0: Parse flags: 0x00000001
pcm0: Ctl flags: 0x00000000
pcm0: Pin cap: 0x00000010
pcm0: OUT
pcm0: Pin config: 0x991301f0
pcm0: Pin control: 0x00000040 OUT
pcm0: Output amp: 0x80053f3d
pcm0: mute=1 step=63 size=5 offset=61
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=15 [audio mixer]
pcm0:
pcm0: nid: 8 [ANALOG]
pcm0: name: pin: Mic in (jack)
pcm0: widget_cap: 0x00400081
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000081
pcm0: Pin cap: 0x00001727
pcm0: ISC TRQD IN VREF[ 50 80 GROUND HIZ ] : UNSOL
pcm0: Pin config: 0x02a11020
pcm0: Pin control: 0x00000024 IN
pcm0: connections: 0
pcm0:
pcm0: nid: 9 [ANALOG]
pcm0: name: pin: line in (jack)
pcm0: widget_cap: 0x00400081
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000000
pcm0: Pin cap: 0x00001727
pcm0: ISC TRQD IN VREF[ 50 80 GROUND HIZ ] : UNSOL
pcm0: Pin config: 0x0181302e
pcm0: Pin control: 0x00000024 IN
pcm0: connections: 0
pcm0:
pcm0: nid: 10 [DIGITAL] [DISABLED]
pcm0: name: pin: SPDIF out (none)
pcm0: widget_cap: 0x00400301
pcm0: Parse flags: 0x00000000
pcm0: Ctl flags: 0x00000000
pcm0: Pin cap: 0x00000010
pcm0: OUT
pcm0: Pin config: 0x414511f0
pcm0: Pin control: 0x00000040 OUT
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=2 [audio output] [DISABLED]
pcm0:
pcm0: nid: 11 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x00300101
pcm0: Parse flags: 0x00000003
pcm0: Ctl flags: 0x00000091
pcm0: connections: 4
pcm0: |
pcm0: + <- nid=3 [audio output] (selected)
pcm0: |
pcm0: + <- nid=12 [audio selector]
pcm0: |
pcm0: + <- nid=13 [audio selector]
pcm0: |
pcm0: + <- nid=14 [audio mixer]
pcm0:
pcm0: nid: 12 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x0030010d
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000081
pcm0: Output amp: 0x00270300
pcm0: mute=0 step=3 size=39 offset=0
pcm0: connections: 2
pcm0: |
pcm0: + <- nid=8 [pin: Mic in (jack)] (selected)
pcm0: |
pcm0: + <- nid=9 [pin: line in (jack)]
pcm0:
pcm0: nid: 13 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x00300101
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000000
pcm0: connections: 2
pcm0: |
pcm0: + <- nid=9 [pin: line in (jack)] (selected)
pcm0: |
pcm0: + <- nid=8 [pin: Mic in (jack)]
pcm0:
pcm0: nid: 14 [ANALOG]
pcm0: name: audio mixer
pcm0: widget_cap: 0x00200101
pcm0: Parse flags: 0x00000003
pcm0: Ctl flags: 0x00000011
pcm0: connections: 3
pcm0: |
pcm0: + <- nid=17 [audio selector]
pcm0: |
pcm0: + <- nid=18 [audio selector]
pcm0: |
pcm0: + <- nid=19 [audio selector]
pcm0:
pcm0: nid: 15 [ANALOG]
pcm0: name: audio mixer
pcm0: widget_cap: 0x00200100
pcm0: Parse flags: 0x00000003
pcm0: Ctl flags: 0x00000000
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=11 [audio selector]
pcm0:
pcm0: nid: 16 [ANALOG]
pcm0: name: beep widget
pcm0: widget_cap: 0x0070000c
pcm0: Parse flags: 0x00000000
pcm0: Ctl flags: 0x00000021
pcm0: Output amp: 0x800b0f0f
pcm0: mute=1 step=15 size=11 offset=15
pcm0: connections: 0
pcm0:
pcm0: nid: 17 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x0030010d
pcm0: Parse flags: 0x00000001
pcm0: Ctl flags: 0x00000011
pcm0: Output amp: 0x80051f17
pcm0: mute=1 step=31 size=5 offset=23
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=3 [audio output]
pcm0:
pcm0: nid: 18 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x0030010d
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000000
pcm0: Output amp: 0x80051f17
pcm0: mute=1 step=31 size=5 offset=23
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=12 [audio selector]
pcm0:
pcm0: nid: 19 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x0030010d
pcm0: Parse flags: 0x00000002
pcm0: Ctl flags: 0x00000000
pcm0: Output amp: 0x80051f17
pcm0: mute=1 step=31 size=5 offset=23
pcm0: connections: 1
pcm0: |
pcm0: + <- nid=13 [audio selector]
pcm0:
pcm0: nid: 20 [ANALOG]
pcm0: name: audio selector
pcm0: widget_cap: 0x0030010d
pcm0: Parse flags: 0x00000006
pcm0: Ctl flags: 0x00000800
pcm0: Output amp: 0x80050f00
pcm0: mute=1 step=15 size=5 offset=0
pcm0: connections: 4
pcm0: |
pcm0: + <- nid=12 [audio selector] (selected)
pcm0: |
pcm0: + <- nid=13 [audio selector]
pcm0: |
pcm0: + <- nid=14 [audio mixer]
pcm0: |
pcm0: + <- nid=15 [audio mixer]
pcm0:
pcm0: nid: 21 [ANALOG]
pcm0: name: power widget
pcm0: widget_cap: 0x00500500
pcm0: Parse flags: 0x00000000
pcm0: Ctl flags: 0x00000000
pcm0: connections: 15
pcm0: |
pcm0: + <- nid=5 [pin: line out (jack)] (selected)
pcm0: |
pcm0: + <- nid=6 [pin: headphones out (jack)]
pcm0: |
pcm0: + <- nid=7 [pin: speaker (fixed)]
pcm0: |
pcm0: + <- nid=8 [pin: Mic in (jack)]
pcm0: |
pcm0: + <- nid=9 [pin: line in (jack)]
pcm0: |
pcm0: + <- nid=11 [audio selector]
pcm0: |
pcm0: + <- nid=12 [audio selector]
pcm0: |
pcm0: + <- nid=13 [audio selector]
pcm0: |
pcm0: + <- nid=14 [audio mixer]
pcm0: |
pcm0: + <- nid=15 [audio mixer]
pcm0: |
pcm0: + <- nid=16 [beep widget]
pcm0: |
pcm0: + <- nid=17 [audio selector]
pcm0: |
pcm0: + <- nid=18 [audio selector]
pcm0: |
pcm0: + <- nid=19 [audio selector]
pcm0: |
pcm0: + <- nid=20 [audio selector]
pcm0:
pcm0: +------------------------+
pcm0: | DUMPING HDA AMPLIFIERS |
pcm0: +------------------------+
pcm0:
pcm0: 1: nid=5 dir=0x1 index=0 ossmask=0x00000000 ossdev=0
pcm0: 2: nid=6 dir=0x1 index=0 ossmask=0x00000000 ossdev=0
pcm0: 3: nid=7 dir=0x1 index=0 ossmask=0x00000000 ossdev=0
pcm0: 4: nid=12 dir=0x1 index=0 ossmask=0x00000081 ossdev=7
pcm0: 5: nid=16 dir=0x1 index=0 ossmask=0x00000021 ossdev=5
pcm0: 6: nid=17 dir=0x1 index=0 ossmask=0x00000011 ossdev=4
pcm0: 7: nid=18 dir=0x1 index=0 ossmask=0x00000000 ossdev=0
pcm0: 8: nid=19 dir=0x1 index=0 ossmask=0x00000000 ossdev=0
pcm0: 9: nid=20 dir=0x1 index=0 ossmask=0x00000800 ossdev=0
pcm0:
pcm0: +-----------------------------------+
pcm0: | DUMPING HDA AUDIO/VOLUME CONTROLS |
pcm0: +-----------------------------------+
pcm0:
pcm0: Master Volume (OSS: vol)
pcm0: |
pcm0: +- nid: 12 index: 0 mute: 0 step: 3 size: 39
off: 0 dir=0x1 ossmask=0x00000081
pcm0: |
pcm0: +- nid: 16 index: 0 mute: 1 step: 15 size: 11
off: 15 dir=0x1 ossmask=0x00000021
pcm0: |
pcm0: +- nid: 17 index: 0 mute: 1 step: 31 size: 5
off: 23 dir=0x1 ossmask=0x00000011
pcm0:
pcm0: PCM Volume (OSS: pcm)
pcm0: |
pcm0: +- nid: 17 index: 0 mute: 1 step: 31 size: 5
off: 23 dir=0x1 ossmask=0x00000011
pcm0:
pcm0: Microphone Volume (OSS: mic)
pcm0: |
pcm0: +- nid: 12 index: 0 mute: 0 step: 3 size: 39
off: 0 dir=0x1 ossmask=0x00000081
pcm0:
pcm0: Recording Level (OSS: rec)
pcm0: |
pcm0: +- nid: 20 index: 0 mute: 1 step: 15 size: 5
off: 0 dir=0x1 ossmask=0x00000800
pcm0:
pcm0: Speaker/Beep (OSS: speaker)
pcm0: |
pcm0: +- nid: 16 index: 0 mute: 1 step: 15 size: 11
off: 15 dir=0x1 ossmask=0x00000021
pcm0:
pcm0: Playback path:
pcm0:
pcm0: nid=5 [pin: line out (jack)]
pcm0: ^
pcm0: |
pcm0: +-----<------+
pcm0: ^
pcm0: |
pcm0: nid=14 [audio mixer]
pcm0: ^
pcm0: |
pcm0: nid=17 [audio selector]
pcm0: ^
pcm0: |
pcm0: nid=3 [audio output]
pcm0:
pcm0: nid=6 [pin: headphones out (jack)]
pcm0: ^
pcm0: |
pcm0: +-----<------+
pcm0: ^
pcm0: |
pcm0: nid=14 [audio mixer]
pcm0: ^
pcm0: |
pcm0: nid=17 [audio selector]
pcm0: ^
pcm0: |
pcm0: nid=3 [audio output]
pcm0:
pcm0: nid=7 [pin: speaker (fixed)]
pcm0: ^
pcm0: |
pcm0: +-----<------+
pcm0: ^
pcm0: |
pcm0: nid=15 [audio mixer]
pcm0: ^
pcm0: |
pcm0: nid=11 [audio selector]
pcm0: ^
pcm0: |
pcm0: nid=3 [audio output]
pcm0:
pcm0: Recording sources:
pcm0:
pcm0: nid=20 [audio selector]
pcm0: |
pcm0: + <- nid=12 [audio selector] [recsrc: vol, mic]
pcm0: |
pcm0: + <- nid=13 [audio selector]
pcm0: |
pcm0: + <- nid=14 [audio mixer] [recsrc: vol, pcm]
pcm0: |
pcm0: + <- nid=15 [audio mixer]
pcm0:
pcm0: +--------------------------------------+
pcm0: | DUMPING PCM Playback/Record Channels |
pcm0: +--------------------------------------+
pcm0:
pcm0: PCM Playback: 1
pcm0: Stream cap: 0x00000001
pcm0: Format: PCM
pcm0: PCM cap: 0x000e007f
pcm0: PCM size: 16 20 24
pcm0: PCM rate: 8 11 16 22 32 44 48
pcm0: DAC: 3
pcm0:
pcm0: PCM Record: 1
pcm0: Stream cap: 0x00000001
pcm0: Format: PCM
pcm0: PCM cap: 0x000e007f
pcm0: PCM size: 16 20 24
pcm0: PCM rate: 8 11 16 22 32 44 48
pcm0: ADC: 4
plato:~$ pciconf -lv | grep -B 4 audio
plato:~$ sysctl hw.snd.verbose=2
hw.snd.verbose: 1 -> 2
plato:~$ cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 64bit)
Installed devices:
pcm0: <Intel 82801H High Definition Audio Controller> at memory
0xdfdfc000 irq 16 kld snd_hda [20070404_0044] (1p/1r/1v channels duplex
default)
[pcm0:play:0:dsp0.p0]: spd 48000, fmt 0x10000010, flags
0x00101000, 0x00000000
interrupts 0, underruns 0, feed 0, ready 0
[b:4096/2048/2|bs:4096/2048/2]
{userland} -> feeder_vchan(0x10000010) -> {hardware}
[pcm0:record:0:dsp0.r0]: spd 0, fmt 0x00000000/0x00000008, flags
0x00000000, 0x00000000
interrupts 0, overruns 0, feed 0, hfree 16384, sfree 0
[b:16384/8192/2|bs:0/0/0]
{hardware} -> feeder_root(0x00000000) -> {userland}
pcm0:play:0:dsp0.p0[pcm0:virtual:0:dsp0.v0]: spd 0, fmt
0x00000000/0x00000008, flags 0x10000000, 0x00000000
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:0/0/0]
{userland} -> feeder_root(0x00000000) -> {hardware}
plato:~$ sysctl hw.snd
hw.snd.syncdelay: -1
hw.snd.usefrags: 0
hw.snd.timeout: 5
hw.snd.latency_profile: 1
hw.snd.latency: 5
hw.snd.report_soft_formats: 1
hw.snd.feeder_buffersize: 16384
hw.snd.feeder_fmt_stereodownmix: 0
hw.snd.feeder_rate_round: 25
hw.snd.feeder_rate_max: 2016000
hw.snd.feeder_rate_min: 1
hw.snd.verbose: 2
hw.snd.sndstat_isopen: 0
hw.snd.maxautovchans: 4
hw.snd.default_unit: 0
plato:~$ mixer speaker 0:0
Setting the mixer speaker from 75:75 to 0:0.
plato:~$ /usr/sbin/mixer
Mixer vol is currently set to 75:75
Mixer pcm is currently set to 75:75
Mixer speaker is currently set to 0:0
Mixer mic is currently set to 0:0
Mixer rec is currently set to 0:0
Recording source: mic
plato:~$
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