Laptops equipped with a Bluetooth controller usually are also equipped
with an indicator. This is very often a Bluetooth logo backlit with a
blue LED.
Starting with Ubuntu release 7.10, a Bluetooth icon will appear in the
notification area if a supported Bluetooth controller has been detected
and is active. The notification area is the space right of the date and
time in the upper panel, where the Volume Control and NetworkManager
icon appear by default. Bluetooth adapters always come up as USB devices
in the output of the lsusb command.
With earlier releases, the presence of a supported Bluetooth controller
is not so apparent. You can use the Device Manager to see if a Bluetooth
controller is indeed present on your computer. In Ubuntu 6.06, you
access it through System > Administration > Device Manager. In Ubuntu
7.04 and later, that would be System > Preferences > Hardware
Information. Look for an entry such as "Bluetooth Host Controller
Interface".
It is also possible to see if the adapter in question is detected using the
Terminal with the following command:
hciconfig -a
You can then use the command suggested by herian with the appropriate
device name. If no Bluetooth controller is found, the above command will
print nothing. Otherwise, it will print various technical information
about the controller(s) found.
If both methods above fail to detect a Bluetooth controller even tough
you believe it should, you will have to check to make sure the
controller is actually enabled, as it is common for manufacturers to
build a way in their computers to switch on/off Bluetooth.
This is done with a simple hardware switch (which may also control the
wireless network interface). Look for such a switch, and make sure it is
in the On position if you do indeed have one. Contact your hardware
manufacturer if you're not sure how / if such switch exists.
Such a switch may also be implemented in software using a keyboard key
combination. Very often, but not always, this key combination would be
Fn-F2. Fn is a modifier key typically only found on laptop; it is
usually located in the bottom left corner of the keyboard, and is
labeled in blue. This key combination may also control the wireless
network interface, so you may cycle the key combination a few time for
it to enable or disable the Bluetooth controller. Watch the Bluetooth
indicator LED for a cue, if you have one.
Lastly, computers that came equipped with a Bluetooth controller built-
in often have an option to have it enabled or disabled in the BIOS. You
may want to check that too. The presence of the Internal Bluetooth BIOS
configuration entry do not mean that a Bluetooth controller is actually
installed; it will sometimes show up even if no Bluetooth option are
installed.
** Changed in: ubuntu
Assignee: Ralf Meyer (ranf) => Fabián Rodríguez (magicfab)
--
No Bluetooth device found
https://bugs.launchpad.net/bugs/119904
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