Drivers

Depending on your computer, you might have to install some specific vendor drivers and/or dedicated programs.

Audio ALSO mixer

apt-get install alsamixergui pavucontrol

Bluetooth headset manager

apt-get install pulseaudio-module-bluetooth*

Restart your computer.

Then Applications > Multimedia > PulseAudio Volume center

• You should see Bluetooth headset :)

Source: http://askubuntu.com/questions/223136/pavucontrol-doesnt-show-bluetooth-headset

Nvidia graphical driver

This is required to manage many screen on Nvidia chipsets.

!! As of now (November 2013) Ubuntu cannot work with Nvidia Optimus technology !! You have to disable it from your bios (under video > Optimus).

Nvidia driver:

apt-get install nvidia-current-updates

Reboot after installation. Then you should be able to configure your screens.