bluedevil software package provides KDE Bluetooth stack, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bluedevil
bluedevil is installed in your system.
Make ensure the bluedevil package were installed using the commands given below,
$ sudo dpkg-query -l | grep bluedevil *
You will get with bluedevil package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | bluedevil |
| Version | 2.0~rc1really1.3.2-0ubuntu1 |
| Description | KDE Bluetooth stack |
| Sub Section | Net |