Bluetooth blues - need advice

[castalla]

I'm going nuts with a bluetooth problem. To keep it short:

1. Bluetooth installed + bluez-utils

2. BT speaker paired and working .... UNTIL

3. Speaker switched off, AND

4. Maybe 10-20 secs. the Pi locks up, loses connection to network.

5. Only solution is to reboot.

I had assumed that the system would accept the bt signal loss - obviously not.
Does anyone know a fx for this? Otherwise, I can't see bt audio being of any use on the pi.

here's the last few moments of dmesg before the crash - can't see anything of any use. though.

Am i missing some config option somewhere in the bluetooth files?

Help gratefully accepted.
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[ 2.372068] Freeing init memory: 124K
[ 2.551643] usb 1-1: New USB device found, idVendor=0424, idProduct=9512
[ 2.560815] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.571674] hub 1-1:1.0: USB hub found
[ 2.578494] hub 1-1:1.0: 3 ports detected
[ 2.861456] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 2.981959] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 2.998696] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.021698] smsc95xx v1.0.4
[ 3.096893] smsc95xx 1-1.1:1.0: eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:9c:86:fb
[ 3.191500] usb 1-1.2: new full-speed USB device number 4 using dwc_otg
[ 3.323579] usb 1-1.2: New USB device found, idVendor=0a12, idProduct=0001
[ 3.349929] usb 1-1.2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.880885] udevd[138]: starting version 175
[ 4.807768] bcm2708_i2c bcm2708_i2c.0: BSC0 Controller at 0x20205000 (irq 79) (baudrate 100k)
[ 5.018240] bcm2708_spi bcm2708_spi.0: SPI Controller at 0x20204000 (irq 80)
[ 5.090405] bcm2708_i2c bcm2708_i2c.1: BSC1 Controller at 0x20804000 (irq 79) (baudrate 100k)
[ 5.569784] Bluetooth: Core ver 2.16
[ 5.798438] NET: Registered protocol family 31
[ 5.798459] Bluetooth: HCI device and connection manager initialized
[ 5.798476] Bluetooth: HCI socket layer initialized
[ 5.798488] Bluetooth: L2CAP socket layer initialized
[ 5.798548] Bluetooth: SCO socket layer initialized
[ 5.799650] Bluetooth: Generic Bluetooth USB driver ver 0.6
[ 5.806331] usbcore: registered new interface driver btusb
[ 10.145027] EXT4-fs (mmcblk0p3): re-mounted. Opts: (null)
[ 10.586725] EXT4-fs (mmcblk0p3): re-mounted. Opts: errors=remount-ro
[ 11.281515] bcm2835 ALSA card created!
[ 11.287488] bcm2835 ALSA chip created!
[ 11.306904] bcm2835 ALSA chip created!
[ 11.317907] bcm2835 ALSA chip created!
[ 11.326236] bcm2835 ALSA chip created!
[ 11.334463] bcm2835 ALSA chip created!
[ 11.342620] bcm2835 ALSA chip created!
[ 11.350544] bcm2835 ALSA chip created!
[ 19.599895] smsc95xx 1-1.1:1.0: eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[ 29.494590] Installing knfsd (copyright © 1996 okir@monad.swb.de).
[ 35.078990] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 35.109536] Bluetooth: BNEP filters: protocol multicast
[ 35.153505] Bluetooth: RFCOMM TTY layer initialized
[ 35.165472] Bluetooth: RFCOMM socket layer initialized
[ 35.184657] Bluetooth: RFCOMM ver 1.11
[ 146.726661] input: 10:B7:F6:00:46:40 as /devices/virtual/input/input0

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