I'm brazilian so sorry for my bad english. My bluetooth adpter doesn't work well, when I boot up the notebook the bluetooth works, but if I turn off the icon in the control panel, and try to turn it on, it won't work.
I already run in terminal the command " service bluetooth restart " but no success.
And if i use bluetoothctl, and after that, run the "power on or scan on"  returns me the error

[bluetooth]# power on
Failed to set power on: org.bluez.Error.Failed
[bluetooth]# scan on
Failed to start discovery: org.bluez.Error.NotReady

I don't know what to do. If there is a way to fix it without restarting the notebook, I'd be gratefull.