Hello,
I have a Bluetooth dongle on my server (ref previous discussion 
) which is correctly detected by the server:
However, in Gladys the Bluetooth service is started, but I have this:
I looked at this thread: Problème Bluetooth sur PC Ubuntu, I did a:
apt install bluetooth bluez libbluetooth-dev libudev-dev
and now if I do a:
systemctl status bluetooth
it’s fine but hcitool dev shows nothing and the module is still not available and not present in Docker either.
Did I misunderstand something? 
Thanks in advance.