Comment 66 for bug 191704

This solution solved my problem too. If the Input service option is
already activated and the blutooth device (mouse) is not connected, then
the input dialog won't appear and it not possible to choose the
bluetooth device. So i had to un-check the "Input Service" in the
services tab first and check this option then the input devices dialog
appaears and the input bluetooth devices are listed in this dialog.
I think this behavior is not well documented.

yts2421 wrote:
> He did not make one thing clear that is easy to overlook. You follow the
> directions and find that in the services tab that Input Service has
> already been checked and you see nothing below but,when you uncheck the
> box and then recheck the box it activates the pairing. Before I did this
> though I went into /etc/default/bluetooth and "Set the variable
> HIDD_ENABLED=1". I am not sue if it helped or not but, I do have my
> mouse back. SEE BELOW
>
> #
>
> on the Bluetooth applet and choose Preferences.
> #
>
> Under "Mode of operation" choose "Visible and connectable for other devices"
> #
>
> Change to the Services tab, there will be a list of Available services. On that list, click once on Input service.
> #
>
> Put your input device in "pair" or "connect" mode. This is usually done with a physical button on or under the device.
> #
>
> In the Input Devices section, click "Add". A new window will appear with
> the input devices visible (in this example, a mouse).
>
>