A 3.8.0-RC2 mainline kernel does not fix the issue. logging collected:

Jan  3 22:10:12 ben-HP-Pavilion-dm4-Notebook-PC bluetoothd[1079]: Endpoint 
registered: sender=:1.53 path=/MediaEndpoint/HFPAG
Jan  3 22:10:12 ben-HP-Pavilion-dm4-Notebook-PC bluetoothd[1079]: Endpoint 
registered: sender=:1.53 path=/MediaEndpoint/HFPHS
Jan  3 22:10:12 ben-HP-Pavilion-dm4-Notebook-PC bluetoothd[1079]: Endpoint 
registered: sender=:1.53 path=/MediaEndpoint/A2DPSource
Jan  3 22:10:12 ben-HP-Pavilion-dm4-Notebook-PC bluetoothd[1079]: Endpoint 
registered: sender=:1.53 path=/MediaEndpoint/A2DPSink
Jan  3 22:10:15 ben-HP-Pavilion-dm4-Notebook-PC ntpdate[2603]: step time server 
91.189.94.4 offset -0.597168 sec
Jan  3 22:10:48 ben-HP-Pavilion-dm4-Notebook-PC bluetoothd[1079]: Badly 
formated or unrecognized command: AT+BIA=0,0,0,1,1,1,0
Jan  3 22:10:50 ben-HP-Pavilion-dm4-Notebook-PC bluetoothd[1079]: Operation not 
supported (95)
Jan  3 22:10:50 ben-HP-Pavilion-dm4-Notebook-PC pulseaudio[2640]: [pulseaudio] 
bluetooth-util.c: Failed to acquire transport fd: Input/output error
Jan  3 22:10:50 ben-HP-Pavilion-dm4-Notebook-PC pulseaudio[2640]: [pulseaudio] 
module.c: Failed to load module "module-bluetooth-device" (argument: 
"address="00:18:6B:15:AC:DC" 
path="/org/bluez/1079/hci0/dev_00_18_6B_15_AC_DC""): initialization failed.
Jan  3 22:10:50 ben-HP-Pavilion-dm4-Notebook-PC kernel: [  176.535292] input: 
00:18:6B:15:AC:DC as /devices/virtual/input/input12


** Tags added: kernel-bug-exists-upstream

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https://bugs.launchpad.net/bugs/1092693

Title:
  CSR BS8510 bluetooth adapter cannot use A2DP profile

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