Android Bluetooth scanning on Froyo HTC Desire

Hi: I'm Facing some problems while scanning for bluetooth devices on a HTC Desire with Android 2.2 (Froyo). Directly after device reboot, it works but when I try to scan again later I only get the following error message. Broadcasts like BluetoothDevice.ACTION_FOUND and B开发者_Python百科luetoothAdapter.ACTION_DISCOVERY_FINISHED are not received.

ERROR/BluetoothEventLoop.cpp(106): event_filter: Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/7229/hci0 

On Nexus One (Froyo) this problem does not occur. Are there any known issues about that?

The discussion about this topic did not yet yield any outlook to future behavior of bluetooth visibility: http://code.google.com/p/android/issues/detail?id=6348 At least there seems some (not yet tested by me) patch for the Cyanogenmod firmware: http://code.google.com/p/android/issues/detail?id=6348#c59