Comment 16 for bug 219057

Hi!

Maybe this can be a workaround:
https://answers.launchpad.net/ubuntu/+question/239371

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Try:

echo "options iwlwifi 11n_disable=1 bt_coex_active=0 power_save=0 auto_agg=0 swcrypto=1" | sudo tee /etc/modprobe.d/iwlwifi.conf > /dev/null

As one big command. Reboot to test.
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I also made a change to enable A2DP in my headset. Before, when I switched to A2DP it didn't worked.

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This worked for me:

1) Open /etc/bluetooth/audio.conf

gksudo gedit /etc/bluetooth/audio.conf

2) find "Enable =..." under [General] and delete Socket fron the list

[General]
Enable = ....

3) Add this line:

Disable = Socket

4) Save

5) Restart the bluetooth service

sudo service bluetooth restart

6) Restar pulseaudio for good measure.

pulseaudio -k
pulseaudio -D

7) Cross Your Fingers and try.

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Now I can use my Sony SHB50 on Ubuntu with good sound (A2DP) and my WiFi is working fine.

My laptop is a Dell 3450

This is my Wifi Card:
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] (rev 34)

This is how PulseAudio detected my bluetooth device:

pacmd list-cards

    index: 2
 name: <bluez_card.94_CE_2C_F8_51_45>
 driver: <module-bluetooth-device.c>
 owner module: 24
 properties:
  device.description = "SBH50"
  device.string = "94:CE:2C:F8:51:45"
  device.api = "bluez"
  device.class = "sound"
  device.bus = "bluetooth"
  device.form_factor = "headset"
  bluez.path = "/org/bluez/542/hci0/dev_94_CE_2C_F8_51_45"
  bluez.class = "0x240404"
  bluez.name = "SBH50"
  device.icon_name = "audio-headset-bluetooth"
  device.intended_roles = "phone"
 profiles:
  hsp: Telefonía Duplex (HSP/HFP) (priority 20, available: unknown)
  a2dp: Reproducción de Alta Fidelidad (A2DP) (priority 10, available: yes)
  off: Apagado (priority 0, available: yes)
 active profile: <a2dp>
 sinks:
  bluez_sink.94_CE_2C_F8_51_45/#4: SBH50
 sources:
  bluez_sink.94_CE_2C_F8_51_45.monitor/#7: Monitor of SBH50
 ports:
  headset-output: Auriculares (priority 0, latency offset 0 usec, available: yes)
   properties:

  headset-input: Auriculares (priority 0, latency offset 0 usec, available: unknown)
   properties: