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#1 2020-06-25 21:03:52

millus
Member
Registered: 2019-07-21
Posts: 43

[Solved] Scanning doesn't find any bluetooth devices

$ dmesg | grep luetooth
[    3.283142] Bluetooth: Core ver 2.22
[    3.283151] Bluetooth: HCI device and connection manager initialized
[    3.283153] Bluetooth: HCI socket layer initialized
[    3.283154] Bluetooth: L2CAP socket layer initialized
[    3.283156] Bluetooth: SCO socket layer initialized
[    3.301464] Bluetooth: hci0: read Intel version: 370810225019140f34
[    3.301465] Bluetooth: hci0: Intel device is already patched. patch num: 34
[    3.334370] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    3.334370] Bluetooth: BNEP filters: protocol multicast
[    3.334372] Bluetooth: BNEP socket layer initialized
[    7.877097] Bluetooth: RFCOMM TTY layer initialized
[    7.877101] Bluetooth: RFCOMM socket layer initialized
[    7.877104] Bluetooth: RFCOMM ver 1.11
$ rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
$ systemctl status bluetooth.service 
● bluetooth.service - Bluetooth service
     Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
     Active: active (running) since Thu 2020-06-25 22:53:41 CEST; 5min ago
       Docs: man:bluetoothd(8)
   Main PID: 591 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 77077)
     Memory: 2.9M
     CGroup: /system.slice/bluetooth.service
             └─591 /usr/lib/bluetooth/bluetoothd

Jun 25 22:53:41 archlinux systemd[1]: Starting Bluetooth service...
Jun 25 22:53:41 archlinux bluetoothd[591]: Bluetooth daemon 5.54
Jun 25 22:53:41 archlinux systemd[1]: Started Bluetooth service.
Jun 25 22:53:41 archlinux bluetoothd[591]: Starting SDP server
Jun 25 22:53:41 archlinux bluetoothd[591]: Bluetooth management interface 1.16 initialized
Jun 25 22:53:45 archlinux bluetoothd[591]: Endpoint registered: sender=:1.32 path=/MediaEndpoint/A2DPSink/sbc
Jun 25 22:53:45 archlinux bluetoothd[591]: Endpoint registered: sender=:1.32 path=/MediaEndpoint/A2DPSource/sbc
$ pacman -Ss bluetooth | grep installed
extra/bluez 5.54-2 [installed]
extra/bluez-hid2hci 5.54-2 [installed]
extra/bluez-libs 5.54-2 [installed]
extra/bluez-utils 5.54-2 [installed]
extra/gnome-bluetooth 3.34.1-1 [installed]
extra/pulseaudio-bluetooth 13.0-3 [installed]
extra/sbc 1.4-2 [installed]
community/blueberry 1.3.8-1 [installed]
community/blueman 2.1.3-1 [installed]
community/bluez-tools 0.2.0-4 [installed]
community/hidapi 0.9.0-1 [installed]
$ pacman -Ss bluez | grep installed
extra/bluez 5.54-2 [installed]
extra/bluez-hid2hci 5.54-2 [installed]
extra/bluez-libs 5.54-2 [installed]
extra/bluez-plugins 5.54-2 [installed]
extra/bluez-qt 5.71.0-1 (kf5) [installed]
extra/bluez-utils 5.54-2 [installed]
community/bluez-tools 0.2.0-4 [installed]
$ bluetoothctl 
Agent registered
[bluetooth]# show
Controller F4:96:34:5F:2C:BE (public)
	Name: archlinux
	Alias: archlinux
	Class: 0x001c0104
	Powered: yes
	Discoverable: no
	DiscoverableTimeout: 0x00000000
	Pairable: yes
	UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)
	UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
	UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)
	UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
	UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
	UUID: IrMC Sync                 (00001104-0000-1000-8000-00805f9b34fb)
	UUID: Vendor specific           (00005005-0000-1000-8000-0002ee000001)
	UUID: Headset AG                (00001112-0000-1000-8000-00805f9b34fb)
	UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
	UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
	UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
	UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
	UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
	UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
	UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
	UUID: OBEX File Transfer        (00001106-0000-1000-8000-00805f9b34fb)
	Modalias: usb:v1D6Bp0246d0536
	Discovering: no
Advertising Features:
	ActiveInstances: 0x00
	SupportedInstances: 0x05
	SupportedIncludes: tx-power
	SupportedIncludes: appearance
	SupportedIncludes: local-name
[bluetooth]# list
Controller F4:96:34:5F:2C:BE archlinux [default]
[bluetooth]# agent on
Agent is already registered
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# scan on
Discovery started
[CHG] Controller F4:96:34:5F:2C:BE Discovering: yes
<....waiting for a bit....>
[bluetooth]# devices
[bluetooth]# 

I also tried the blueman-manager applet, there too scan would just run, finish, but not detect ANY devices, despite me having at least one pairable device activated (and a lot more to be found in the neighbourhood).

Last edited by millus (2020-06-25 21:22:24)

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#2 2020-06-25 21:22:12

millus
Member
Registered: 2019-07-21
Posts: 43

Re: [Solved] Scanning doesn't find any bluetooth devices

Umm sorry.
I rebooted and it works now!

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