aplay: set_params:966: Channels count non available

aplay: set_params:966: Channels count non available

[Brian J. Murrell]

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I am ultimately, trying to get my Jabra BT 125 headset to work with
pulseaudio, but given that I am having problems with that, I thought I
would take a step back and see if I could just get basic BT headset
functionality working first.

I am using linux 2.6.30, and bluez 0.41 and this BT dongle:

Bus 002 Device 008: ID 0a5c:2121 Broadcom Corp. BCM2210 Bluetooth

I have the headset paired with my workstation but when I try to play a
file with it I get an error:

$ aplay -D bluetoothraw /mnt/mp3/bad_mouth.wav 
Playing WAVE '/mnt/mp3/bad_mouth.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
aplay: set_params:966: Channels count non available

When I try this, bluetoothd -d reports:

bluetoothd[21210]: Accepted new client connection on unix socket (fd=24)
bluetoothd[21210]: Audio API: BT_REQUEST <- BT_GET_CAPABILITIES
bluetoothd[21210]: Audio API: BT_RESPONSE -> BT_GET_CAPABILITIES
bluetoothd[21210]: Unix client disconnected (fd=24)
bluetoothd[21210]: client_free(0x130f7d0)

In my ~/.asoundrc I have:

pcm.bluetoothraw {
   type bluetooth
   device 00:1A:45:1B:19:89
   #profile "auto" #optional, supported profiles are: auto, hifi and voice
}

Uncommenting that profile doesn't seem to help.

Additionally, when I try to record from the headset:

$ arecord -D bluetooth -f S16_LE | paplay
Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
ALSA lib pcm_bluetooth.c:1607:(audioservice_expect) BT_OPEN failed : Invalid argument(22)
arecord: set_params:1022: Unable to install hw params:
ACCESS:  RW_INTERLEAVED
FORMAT:  S16_LE
SUBFORMAT:  STD
SAMPLE_BITS: 16
FRAME_BITS: 16
CHANNELS: 1
RATE: 8000
PERIOD_TIME: 125000
PERIOD_SIZE: 1000
PERIOD_BYTES: 2000
PERIODS: 4
BUFFER_TIME: 500000
BUFFER_SIZE: 4000
BUFFER_BYTES: 8000
TICK_TIME: 0

and bluetoothd -d says:

bluetoothd[21210]: Accepted new client connection on unix socket (fd=24)
bluetoothd[21210]: Audio API: BT_REQUEST <- BT_GET_CAPABILITIES
bluetoothd[21210]: Audio API: BT_RESPONSE -> BT_GET_CAPABILITIES
bluetoothd[21210]: Audio API: BT_REQUEST <- BT_OPEN
bluetoothd[21210]: open sco - object=ANY source=ANY destination=ANY lock=read
bluetoothd[21210]: Unable to open seid 64
bluetoothd[21210]: Audio API: BT_ERROR -> BT_OPEN
bluetoothd[21210]: Unix client disconnected (fd=24)
bluetoothd[21210]: client_free(0x130f7d0)

Something is definitely awry, but I'm not really sure where to go from
here in debugging.

Any help would be appreciated.

Thanx,
b.

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