Hi I run the following commands in bluetoothctl on bluez-5.7-1 (but I know this bug since I started using bluetoothctl (probably 5.0 or 5.1), just didn't get around reporting it, yet. Sorry.): [bluetooth]# power on [CHG] Controller 00:25:00:50:C4:C9 Class: 0x00010c Changing power on succeeded [CHG] Controller 00:25:00:50:C4:C9 Powered: yes [bluetooth]# connect 00:1E:35:3B:7E:6D Attempting to connect to 00:1E:35:3B:7E:6D Connection successful [CHG] Device 00:1E:35:3B:7E:6D Connected: yes Works just fine. Then I disconnect the device by removing its batteries. bluez notices this and removes the connection: [CHG] Device 00:1E:35:3B:7E:6D Connected: no However, a following connect always fails immediately: [bluetooth]# connect 00:1E:35:3B:7E:6D Attempting to connect to 00:1E:35:3B:7E:6D Failed to connect: org.bluez.Error.NotAvailable Any following commands, whether "connect" or "info" on the given device result in: [bluetooth]# info 00:1E:35:3B:7E:6D Device 00:1E:35:3B:7E:6D not available power off -> power on doesn't help. I need to restart bluetoothd to make it work again. The related debug log is appended below. Any hints where to start debugging is welcome. I tested this with two HIDP devices. Thanks David log starts with "power on" in bluetoothctl: Sep 04 13:39:03 david-mb bluetoothd[16799]: src/adapter.c:property_set_mode() sending Set Powered command for index 0 Sep 04 13:39:03 david-mb bluetoothd[16799]: src/adapter.c:dev_class_changed_callback() Class: 0x00010c Sep 04 13:39:03 david-mb bluetoothd[16799]: src/attrib-server.c:attrib_db_update() handle=0x0008 Sep 04 13:39:03 david-mb bluetoothd[16799]: src/adapter.c:property_set_mode_complete() Success (0x00) Sep 04 13:39:03 david-mb bluetoothd[16799]: src/adapter.c:new_settings_callback() Settings: 0x000000d3 Sep 04 13:39:03 david-mb bluetoothd[16799]: src/adapter.c:settings_changed() Changed settings: 0x00000001 Sep 04 13:39:03 david-mb bluetoothd[16799]: src/adapter.c:adapter_start() adapter /org/bluez/hci0 has been enabled Sep 04 13:39:21 david-mb bluetoothd[16799]: src/device.c:connect_profiles() /org/bluez/hci0/dev_00_1E_35_3B_7E_6D (all), client :1.13 Sep 04 13:39:21 david-mb bluetoothd[16799]: src/service.c:change_state() 0x93fde0: device 00:1E:35:3B:7E:6D profile input-hid state changed: disconnected -> connecting (0) Sep 04 13:39:21 david-mb bluetoothd[16799]: src/adapter.c:connected_callback() hci0 device 00:1E:35:3B:7E:6D connected eir_len 21 Sep 04 13:39:21 david-mb bluetoothd[16799]: src/service.c:change_state() 0x93fde0: device 00:1E:35:3B:7E:6D profile input-hid state changed: connecting -> connected (0) Sep 04 13:39:21 david-mb bluetoothd[16799]: src/device.c:device_profile_connected() input-hid Success (0) Sep 04 13:39:21 david-mb bluetoothd[16799]: src/device.c:device_profile_connected() returning response to :1.13 [...kernel HID messages for the device...] Sep 04 13:39:48 david-mb bluetoothd[16799]: profiles/input/device.c:ctrl_watch_cb() Device 00:1E:35:3B:7E:6D disconnected Sep 04 13:39:48 david-mb bluetoothd[16799]: profiles/input/device.c:intr_watch_cb() Device 00:1E:35:3B:7E:6D disconnected Sep 04 13:39:48 david-mb bluetoothd[16799]: profiles/input/device.c:input_device_enter_reconnect_mode() path=/org/bluez/hci0/dev_00_1E_35_3B_7E_6D reconnect_mode=device Sep 04 13:39:48 david-mb bluetoothd[16799]: src/adapter.c:dev_disconnected() Device 00:1E:35:3B:7E:6D disconnected, reason 2 Sep 04 13:39:48 david-mb bluetoothd[16799]: src/adapter.c:adapter_remove_connection() Sep 04 13:39:48 david-mb bluetoothd[16799]: src/adapter.c:bonding_attempt_complete() hci0 bdaddr 00:1E:35:3B:7E:6D type 0 status 0xe Sep 04 13:39:48 david-mb bluetoothd[16799]: src/device.c:device_bonding_complete() bonding (nil) status 0x0e Sep 04 13:39:48 david-mb bluetoothd[16799]: src/device.c:device_bonding_failed() status 14 Sep 04 13:39:48 david-mb bluetoothd[16799]: src/adapter.c:resume_discovery() [any further commands like "connect" result in:] Sep 04 13:42:06 david-mb bluetoothd[16799]: src/device.c:connect_profiles() /org/bluez/hci0/dev_00_1E_35_3B_7E_6D (all), client :1.13 -- 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