That sounds like an excellent workaround. It's probably not a fix though. A fix would involve finding out why the config has confused bluez.
Actually this sounds like an "old" bug that was fixed after 16.04 since newer releases aren't being reported. If we could figure out what fixed it then we could backport that fix to 16.04. You can search the code here: https://git.kernel.org/pub/scm/bluetooth/bluez.git -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1490349 Title: 15:10 and 16.04: bluetoothd reports "Not enough free handles to register service" at start Status in bluez package in Ubuntu: Confirmed Bug description: On 15:10 after the bluetooth service has been stopped and restarted it is not possible to scan or connect to devices: $ sudo systemctl start bluetooth $ journalctl --unit=bluetooth | tail -n 19 | awk '{$1="";$2="";$4="";print $0}' 23:31:53 systemd[1]: Starting Bluetooth service... 23:31:53 bluetoothd[16647]: Bluetooth daemon 5.33 23:31:53 systemd[1]: Started Bluetooth service. 23:31:53 bluetoothd[16647]: Starting SDP server 23:31:53 bluetoothd[16647]: Bluetooth management interface 1.9 initialized 23:31:53 bluetoothd[16647]: Failed to obtain handles for "Service Changed" characteristic 23:31:53 bluetoothd[16647]: Not enough free handles to register service 23:31:53 bluetoothd[16647]: Error adding Link Loss service 23:31:53 bluetoothd[16647]: Not enough free handles to register service 23:31:53 bluetoothd[16647]: Not enough free handles to register service 23:31:53 bluetoothd[16647]: Not enough free handles to register service 23:31:53 bluetoothd[16647]: Current Time Service could not be registered 23:31:53 bluetoothd[16647]: gatt-time-server: Input/output error (5) 23:31:53 bluetoothd[16647]: Not enough free handles to register service 23:31:53 bluetoothd[16647]: Not enough free handles to register service 23:31:53 bluetoothd[16647]: Sap driver initialization failed. 23:31:53 bluetoothd[16647]: sap-server: Operation not permitted (1) 23:31:53 bluetoothd[16647]: Endpoint registered: sender=:1.440 path=/MediaEndpoint/A2DPSource 23:31:53 bluetoothd[16647]: Endpoint registered: sender=:1.440 path=/MediaEndpoint/A2DPSink And $ bluetoothctl [NEW] Controller 00:1F:3A:E0:0A:AF hephaestion.lan.iam.tj [default] [NEW] Device 00:0A:95:4B:BD:C2 Apple Wireless Keyboard [NEW] Device 00:07:61:3B:86:98 Bluetooth Travel Mouse [bluetooth]# scan on Failed to start discovery: org.bluez.Error.NotReady To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1490349/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
