broken bluetooth audio?

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Hello,

I still have lots of hiccups when playing DVB or other stuff.

First I thought pulseaudio is the source for trouble and I disabled it.

But disabling pulseaudio did not help much, audio still drops out from
time to time. It only happens when using my bluetooth headset from
Jabra. With a wired headphone everything is fine.

I use ALSA 1.0.26 with kernel 3.7.10.

When the headset loses connection I get these messages in /var/log/messages:

bluetoothd[4058]: No reply to Suspend request
2014-02-15T05:58:20.218470+01:00 linux-hwl6 bluetoothd[4058]: No reply
to Suspend request
2014-02-15T05:58:21.634581+01:00 linux-hwl6 bluetoothd[4058]:
bluetoothd[4058]: Operation already in progress (114)
2014-02-15T05:58:21.635289+01:00 linux-hwl6 bluetoothd[4058]:
bluetoothd[4058]: discovery failed
2014-02-15T05:58:21.635913+01:00 linux-hwl6 bluetoothd[4058]: Operation
already in progress (114)
2014-02-15T05:58:21.636863+01:00 linux-hwl6 bluetoothd[4058]: discovery
failed
2014-02-15T05:58:38.228495+01:00 linux-hwl6 bluetoothd[4058]:
bluetoothd[4058]: Host is down (112)
2014-02-15T05:58:38.228523+01:00 linux-hwl6 bluetoothd[4058]: Host is
down (112)
2014-02-15T05:58:38.228528+01:00 linux-hwl6 bluetoothd[4058]: discovery
failed
2014-02-15T05:58:38.228534+01:00 linux-hwl6 bluetoothd[4058]:
bluetoothd[4058]: discovery failed

/etc/bluetooth/audio.conf looks like this:

[General]
Enable=Sink,Control,Headset,Gateway,Source,Media,Socket
Master=true
AutoConnect=true

[Headset]
HFP=false

Where to start debugging the issue? I guess it could be a ALSA issue, a
kernel issue or bluetoothd issue?

Should I try to run bluetoothd with realtime priority?

Thanks
Malte

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