[Bluez-devel] "unable to install hw params" to bluetooth (SCO) headset (was: btusb+sco failing to play sound through Jabra BT500v headset)

[Bluez-devel] "unable to install hw params" to bluetooth (SCO) headset (was: btusb+sco failing to play sound through Jabra BT500v headset)

[Stuart Pook]

Hello

I have read Martin's messages concerning his Jabra BT500v bluetooth headset.

I have similar problems with my Jabra JX10 headset.  I have installed 
bluez-4.4. When I run aplay with a 2.6.26 kernel, aplay works. When I 
run aplay with linux 2.6.27-rc5 I can hear a hiss when my PC connects to 
the headset but no music.

I have written a long bug report on 
http://bugzilla.kernel.org/show_bug.cgi?id=11514 with the output of 
hcidump -X -V and the messages from bluetoothd. Could someone have a 
look and give me a hint about what I might be doing wrong? Has anyone 
had any luck with Jabra headsets and 2.6.27-rc5 or should I buy a 
different brand of headset? Marcel Holtmann said that "It simply works 
for me." What headsets have you tested?

aplay always says "Unable to install hw params" after bluetoothd says 
"connect(): Connection timed out (110)" but hcidump shows lots of SCO 
packets being sent to the headset.

thanks
Stuart

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[Bluez-devel] SCO flowcontrol patch v4.4 on 2.6.25/6 causes hardlocks when connecting to BT device

[martin f krafft]

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also sprach martin f krafft <madduck@madduck.net> [2008.04.11.0932 +0200]:
> I have just compiled a Debian 2.6.24 with the v4.4 patch: it applied
> and compiled cleanly.
> 
> And it works most of the time with my BT500v headset (sco)! Thank
> you for that.

So I used to have a working Bluetooth setup with 2.6.24, and it also
still works. However, the kernel developers have moved on, and even
though the sco-flowcontrol v4.4 patch applies to 2.6.25/6 as well
[0], the resulting 2.6.25 and 2.6.26 kernels both freeze hard when
I try to connect to the headset.

0. http://bugs.debian.org/493098

Does anyone have an idea what could be going on? How can I help
debug this? Is there a newer patch floating around somewhere?

-- 
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 less-bad than the people who prepare the carcasses for dissection in
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Re: [Bluez-devel] SCO flowcontrol patch v4.4 on 2.6.25/6 causes hardlocks when connecting to BT device

[Marcel Holtmann]

Hi Martin,

> > I have just compiled a Debian 2.6.24 with the v4.4 patch: it applied
> > and compiled cleanly.
> > 
> > And it works most of the time with my BT500v headset (sco)! Thank
> > you for that.
> 
> So I used to have a working Bluetooth setup with 2.6.24, and it also
> still works. However, the kernel developers have moved on, and even
> though the sco-flowcontrol v4.4 patch applies to 2.6.25/6 as well
> [0], the resulting 2.6.25 and 2.6.26 kernels both freeze hard when
> I try to connect to the headset.
> 
> 0. http://bugs.debian.org/493098
> 
> Does anyone have an idea what could be going on? How can I help
> debug this? Is there a newer patch floating around somewhere?

what about not using that patch at all? I am using the new audio
interface without that patch. And you wanna use the btusb driver and
since 2.6.27-rc4 that one actually has SCO support.

Regards

Marcel



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[Bluez-devel] btusb+sco failing to play sound through Jabra BT500v headset (was: SCO flowcontrol patch v4.4 on 2.6.25/6 causes) hardlocks when connecting to BT device

[martin f krafft]

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also sprach Marcel Holtmann <marcel@holtmann.org> [2008.08.22.0933 +0100]:
> what about not using that patch at all? I am using the new audio
> interface without that patch. And you wanna use the btusb driver
> and since 2.6.27-rc4 that one actually has SCO support.

If I had known... :)

Unfortunately, I have not yet succeeded. I modprobed 'sco' and then
ran headsetd as before, but that just prints

  headsetd[9417]: Bluetooth headset daemon version 0.5
  headsetd[9417]: Configuration phase ended: target bdaddr is 00:1A:45:14:EE:D7, timeout is 90000 ms
  headsetd[9417]: Changing state: Idle-->Paging
  headsetd[9417]: Changing state: Paging-->Connecting
  headsetd[9417]: Changing state: Connecting-->Ready
  headsetd[9417]: Changing state: Ready-->Opening

At this point, the headset makes the sound it makes when
a connection is established, but there is no sound coming from it.

After about 40 seconds, the client says:

  aplay: main:564: audio open error: Connection timed out

and headsetd writes:

  headsetd[9417]: unable to open SCO channel to headset: Connection timed out
  headsetd[9417]: Changing state: Opening-->ZombieAppl
  headsetd[9417]: Appli closed socket
  headsetd[9417]: Changing state: ZombieAppl-->Idle

So something's still broken... :(

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Re: [Bluez-devel] btusb+sco failing to play sound through Jabra BT500v headset (was: SCO flowcontrol patch v4.4 on 2.6.25/6 causes) hardlocks when connecting to BT device

[Marcel Holtmann]

Hi Martin,

>> what about not using that patch at all? I am using the new audio
>> interface without that patch. And you wanna use the btusb driver
>> and since 2.6.27-rc4 that one actually has SCO support.
>
> If I had known... :)
>
> Unfortunately, I have not yet succeeded. I modprobed 'sco' and then
> ran headsetd as before, but that just prints
>
>  headsetd[9417]: Bluetooth headset daemon version 0.5
>  headsetd[9417]: Configuration phase ended: target bdaddr is 00:1A: 
> 45:14:EE:D7, timeout is 90000 ms
>  headsetd[9417]: Changing state: Idle-->Paging
>  headsetd[9417]: Changing state: Paging-->Connecting
>  headsetd[9417]: Changing state: Connecting-->Ready
>  headsetd[9417]: Changing state: Ready-->Opening

don't use headsetd. Use the audio stuff that comes with bluez-utils.

Regards

Marcel


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[Bluez-devel] "unable to install hw params" to bluetooth (SCO) headset (was: btusb+sco failing to play sound through Jabra BT500v headset)

[martin f krafft]

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also sprach Marcel Holtmann <marcel@holtmann.org> [2008.08.26.1819 +0100]:
> don't use headsetd. Use the audio stuff that comes with bluez-utils.

So I am trying, and I got a little further, installing the right
lines into .asoundrc as per
http://wiki.bluez.org/wiki/HOWTO/AudioDevices. I have gotten beyond
issues of

  bt_audio_service_open: connect() failed: Connection refused (111)
  aplay: main:564: audio open error: Connection refused 

but it still doesn't want to work. If I execute

  arecord -D bt500v -f S16_LE | aplay -D bt500v -f S16_LE

then the headset makes a noise, the bluetooth LED flashes and
arecord prints

  Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono

But then after about 30 or 40 seconds, it all fails:

  ALSA lib pcm_bluetooth.c:464:(bluetooth_hsp_hw_params) BT_SETCONFIGURATION failed : Input/output error(5)
  arecord: set_params:979: 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 0]
  aplay: playback:2019: read error

I have bluez-audio installed, but /etc/bluetooth/audio.conf is
default. No PulseAudio or anything other than plain ALSA here...

Any clues?

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Re: [Bluez-devel] "unable to install hw params" to bluetooth (SCO) headset (was: btusb+sco failing to play sound through Jabra BT500v headset)

[Marcel Holtmann]

Hi Martin,

> > don't use headsetd. Use the audio stuff that comes with bluez-utils.
> 
> So I am trying, and I got a little further, installing the right
> lines into .asoundrc as per
> http://wiki.bluez.org/wiki/HOWTO/AudioDevices. I have gotten beyond
> issues of
> 
>   bt_audio_service_open: connect() failed: Connection refused (111)
>   aplay: main:564: audio open error: Connection refused 
> 
> but it still doesn't want to work. If I execute
> 
>   arecord -D bt500v -f S16_LE | aplay -D bt500v -f S16_LE
> 
> then the headset makes a noise, the bluetooth LED flashes and
> arecord prints
> 
>   Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
> 
> But then after about 30 or 40 seconds, it all fails:
> 
>   ALSA lib pcm_bluetooth.c:464:(bluetooth_hsp_hw_params) BT_SETCONFIGURATION failed : Input/output error(5)
>   arecord: set_params:979: 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 0]
>   aplay: playback:2019: read error
> 
> I have bluez-audio installed, but /etc/bluetooth/audio.conf is
> default. No PulseAudio or anything other than plain ALSA here...
> 
> Any clues?

actually I have none. It simply works for me. And I have tested it a
lot. There are some rare conditions where the btusb driver is off on the
16-bit boundaries, but I am looking at a fix for it. However this will
not disturb the audio service. You just don't here anything.

Regards

Marcel



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Re: [Bluez-devel] "unable to install hw params" to bluetooth (SCO) headset (was: btusb+sco failing to play sound through Jabra BT500v headset)

[martin f krafft]

[-- Attachment #1.1: Type: text/plain, Size: 625 bytes --]

also sprach Marcel Holtmann <marcel@holtmann.org> [2008.09.05.1800 +0100]:
> actually I have none. It simply works for me. And I have tested it a
> lot. There are some rare conditions where the btusb driver is off on the
> 16-bit boundaries, but I am looking at a fix for it. However this will
> not disturb the audio service. You just don't here anything.

Where should we go from here? How can I help debug this?

-- 
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a cat has one tail more than no cat.
therefore, a cat has nine tails.
 
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