[Pkg-bluetooth-maintainers] Bug#813949: bluetooth: error causing service to be unusable: Not enough free handles to register service

[Alban Browaeys]

Try enabling experimental features from bluetoothd :
that is modify
  /lib/systemd/system/bluetooth.service
to have:
  ExecStart=/usr/lib/bluetooth/bluetoothd -E
instead of:
  ExecStart=/usr/lib/bluetooth/bluetoothd

then:
 sudo systemctl daemon-reload
and:
 sudo systemctl restart bluetooth.service

This fixed the :

Feb 06 15:47:43 servo bluetoothd[801]: Not enough free handles to register service
Feb 06 15:47:43 servo bluetoothd[801]: Error adding Link Loss service
Feb 06 15:47:43 servo bluetoothd[801]: Not enough free handles to register service
Feb 06 15:47:43 servo bluetoothd[801]: Not enough free handles to register service
Feb 06 15:47:43 servo bluetoothd[801]: Not enough free handles to register service
Feb 06 15:47:43 servo bluetoothd[801]: Current Time Service could not be registered
Feb 06 15:47:43 servo bluetoothd[801]: gatt-time-server: Input/output error (5)
Feb 06 15:47:43 servo bluetoothd[801]: Not enough free handles to register service
Feb 06 15:47:43 servo bluetoothd[801]: Not enough free handles to register service
Feb 06 15:47:43 servo bluetoothd[801]: Sap driver initialization failed.
Feb 06 15:47:43 servo bluetoothd[801]: sap-server: Operation not permitted (1)

side of the issue (that is "gatt" issues)

but left:
Feb 06 15:47:43 servo bluetoothd[801]: Failed to obtain handles for "Service Changed" characteristic

PS: my local issue was not related to those errors YMMV.
The -E flag clue for GATT is from https://bugs.launchpad.net/ubuntu/+so
urce/bluez/+bug/1546603 


NB: you might also add "-d" to enable debugging output .
if nothing obvious shows up , "sudo btmon" output while running the
bluetooth commands will help further.


Cheers
Alban