First of all, thanks to Luiz and Barry for responding to my emails yesterday. I have updated to BlueZ 5.43. However, now BlueZ no longer finds my Bluetooth controller. BlueZ 5.19 did find it. I'm running Linux kernel 3.10.49 on a Qualcomm development board; "uname -a" says: Linux apq8009 3.10.49-g3c78468 #1 SMP PREEMPT Mon Jan 16 14:50:44 MST 2017 armv7l GNU/Linux "hcitool dev" displays no devices, nor does the "list" command in bluetoothctl. Running bluetoothd with the -d and -n options produces: bluetoothd[1902]: Bluetooth daemon 5.43 bluetoothd[1902]: src/adapter.c:adapter_init() sending read version command bluetoothd[1902]: Starting SDP server bluetoothd[1902]: src/sdpd-service.c:register_device_id() Adding device id record for 0002:1d6b:0246:052b bluetoothd[1902]: src/plugin.c:plugin_init() Loading builtin plugins bluetoothd[1902]: src/plugin.c:add_plugin() Loading hostname plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading wiimote plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading autopair plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading policy plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading a2dp plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading avrcp plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading network plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading input plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading hog plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading gap plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading scanparam plugin bluetoothd[1902]: src/plugin.c:add_plugin() Loading deviceinfo plugin bluetoothd[1902]: src/plugin.c:plugin_init() Loading plugins /usr/lib/bluetooth/plugins bluetoothd[1902]: profiles/input/suspend-none.c:suspend_init() bluetoothd[1902]: profiles/network/manager.c:read_config() /etc/bluetooth/network.conf: Key file does not have key 'DisableSecurity' bluetoothd[1902]: profiles/network/manager.c:read_config() Config options: Security=true bluetoothd[1902]: Failed to open RFKILL control device bluetoothd[1902]: src/main.c:main() Entering main loop bluetoothd[1902]: Bluetooth management interface 1.3 initialized bluetoothd[1902]: src/adapter.c:read_version_complete() sending read supported commands command bluetoothd[1902]: src/adapter.c:read_version_complete() sending read index list command bluetoothd[1902]: src/adapter.c:read_commands_complete() Number of commands: 38 bluetoothd[1902]: src/adapter.c:read_commands_complete() Number of events: 21 bluetoothd[1902]: src/adapter.c:read_index_list_complete() Number of controllers: 0 Grepping dmesg for "blue" produces: [ 0.408223] Bluetooth: Core ver 2.16 [ 0.408287] Bluetooth: HCI device and connection manager initialized [ 0.408303] Bluetooth: HCI socket layer initialized [ 0.408318] Bluetooth: L2CAP socket layer initialized [ 0.408394] Bluetooth: SCO socket layer initialized [ 6.175305] Bluetooth: RFCOMM TTY layer initialized [ 6.175348] Bluetooth: RFCOMM socket layer initialized [ 6.175355] Bluetooth: RFCOMM ver 1.11 [ 6.175363] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 6.175369] Bluetooth: BNEP filters: protocol multicast [ 6.175386] Bluetooth: BNEP socket layer initialized [ 6.175394] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 6.175409] Bluetooth: HIDP socket layer initialized Is there something I need to configure so that Bluez 5.43 finds my controller? Thanks! - Dave -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html