Headphones drivers sony WH-CH700N Ubuntu 18.04

To install the headphones sony model WH-CH700N and similar versions, apparently there is a bug, and these fail to have a connection with the default driver, always reconnecting, and sometimes even the connection via bluetooth is not achieved, because it is not a problem of the headphone itself.

The solution is to compile the bluez-5.52 driver allowing to use it:

A2DP Sink

A2DP (Advanced Audio Distribution Profile): allows the transmission of stereo audio signals (with a much higher quality than the mono coding used by the HSP and HFP profiles)…​ a stereo headset) to a target device…​

You may need to install dependencies such as

sudo apt install libdbus-1-dev libudev-dev libical-dev libreadline-dev
sudo make install
sudo service bluetooth restart
sudo reboot

After the above I had to make the connection by blueman and pair almost every time. 😡

sudo apt install blueman

But with that it was not enough, in my case I had something wrong configured with the pulse audio, solving it with

rm -r ~/.config/pulse; pulseaudio -k
sudo reboot

When starting the OS, and running the blueman I have gotten these errors on several occasions.

Output de blueman+ "Connection Failed: blueman.bluez.errors.DBusFailedError: Host is down" "Falló la conexión: blueman.bluez.errors.DBusFailedError: Resource temporarily unavailable…​" "Falló la conexión: blueman.bluez.errors.DBusInProgressError: In Progress…​"
Other times, by simply turning on the headphones and opening the blueman the connection is successful and we have audio. //FIXME

Possible solution, when we have constant reconnections.

Restart bluetooth service

sudo systemctl restart bluetooth
  • 1 I close the blueman

  • 2 I turn off the headphones

  • 3 I open the blueman

    • Intermediate step, remove the previous headphones, right click Delete

  • 4 I activate the headphones in pairing mode.

  • 5 Start search in blueman

  • 6 Click on the item of our headphones

  • 7 Last but not least:

    • Right click Match

    • Then right click Audio output in blueman.


🤔🔥 A bit tedious at times

This is how the sound configuration looks like, with the selected device.

configuracion de sonido