It may have been a regression, or you just disabled it.
This copied from Ubuntu wiki (which shares the same code base as trisquel):
To manually configure bluetooth, you will need:
sudo apt-get install bluez python-gobject python-dbus
python-gobject and python-dbus are needed for the python scripts
bluez-simple-agent and bluez-test-device to work.
Discover the hciX location of the dongle with:
hcitool dev
Devices:
hci0 00:11:95:00:1A:CF
(i) Your Bluetooth device will have a different id.
sudo bluez-simple-agent hci0 XX:XX:XX:XX:XX:XX
XX:XX:XX:XX:XX:XX is the MAC or BT ADD or BlueTooth Address of the bt device.
Press the reset or pair button on your keyboard, simple-agent will ask to
specify a pin like 1111, then type that pin on the bt keyboard and your bt
keyboard is paired.
sudo bluez-test-device trusted XX:XX:XX:XX:XX:XX yes
To set the device as trusted
sudo /etc/init.d/bluetooth restart
To restart the bluetooth daemon.
Check if the device is added:
dmesg|tail
The last lines will list your device.
