Bluetooth not operable "Searching for devices"

Questions about Wi-Fi and other network devices, file sharing, firewalls, connection sharing etc
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
Locked
CraigLi

Bluetooth not operable "Searching for devices"

Post by CraigLi »

Bluetooth will not work on my HP laptop. It will not find any of my devices even though the two devices I'm trying can see each other.

I am new to Linux. I am running kernel 4.15 with all the latest updates.

In trying to fix this problem I have installed Blueman which may or may not be getting in the way.

Thank you in advance for your assistance.

lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 2a94:5009
Bus 001 Device 004: ID 0bda:b00a Realtek Semiconductor Corp.
Bus 001 Device 003: ID 04f2:b627 Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


dmesg | egrep -i 'blue|firm'
[ 0.061084] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.991912] [Firmware Bug]: Invalid critical threshold (0)
[ 1.242940] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_01.bin (v1.1)
[ 1.766515] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x4d5f02)
[ 2.053416] usb 1-7: Product: Bluetooth Radio
[ 39.913621] Bluetooth: Core ver 2.22
[ 39.913633] Bluetooth: HCI device and connection manager initialized
[ 39.913634] Bluetooth: HCI socket layer initialized
[ 39.913636] Bluetooth: L2CAP socket layer initialized
[ 39.913639] Bluetooth: SCO socket layer initialized
[ 40.289738] Bluetooth: hci0: rtl: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[ 40.289739] Bluetooth: hci0: rtl: loading rtl_bt/rtl8821a_config.bin
[ 40.350184] bluetooth hci0: Direct firmware load for rtl_bt/rtl8821a_config.bin failed with error -2
[ 40.350185] Bluetooth: hci0: rtl: loading rtl_bt/rtl8821a_fw.bin
[ 40.365733] Bluetooth: hci0: rom_version status=0 version=1
[ 40.365736] Bluetooth: hci0: cfg_sz 0, total size 17428
[ 42.460060] Bluetooth: hci0: command 0xfc20 tx timeout
[ 50.652123] Bluetooth: hci0: download fw command failed (-110)
[ 50.851856] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 50.851857] Bluetooth: BNEP filters: protocol multicast
[ 50.851861] Bluetooth: BNEP socket layer initialized


sudo apt-get install bluetooth bluez bluez-tools rfkill rfcomm
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package rfcomm
craig@my-laptop ~ $ systemctl status bluetooth
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2018-11-18 14:34:13 MST; 44min ago
Docs: man:bluetoothd(8)
Main PID: 1201 (bluetoothd)
Status: "Running"
CGroup: /system.slice/bluetooth.service
└─1201 /usr/lib/bluetooth/bluetoothd

Nov 18 14:34:13 craig-2018-laptop systemd[1]: Starting Bluetooth service...
Nov 18 14:34:13 craig-2018-laptop bluetoothd[1201]: Bluetooth daemon 5.37
Nov 18 14:34:13 craig-2018-laptop systemd[1]: Started Bluetooth service.
Nov 18 14:34:13 craig-2018-laptop bluetoothd[1201]: Starting SDP server
Nov 18 14:34:13 craig-2018-laptop bluetoothd[1201]: Bluetooth management interface 1.14 initialized
Nov 18 14:34:13 craig-2018-laptop bluetoothd[1201]: No Bluetooth address for index 0


sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
CraigLi

Re: Bluetooth not operable "Searching for devices"

Post by CraigLi »

Status update. I'm still struggling with this issue and bluetooth is still now working for me.

From the research I've continued to do :D it looks like the drivers I need are not available until kernel 4.17. I recently upgraded to kernel 4.15 to get my wireless to work (Thank you Jeremy). I tried to install the 4.17 kernel but it didn't seem to work. I'm now in the process of upgrading to Linux Mint 19 and hopefully the 4.19 kernel. I am going to open another post because I can't find anywhere which says that the 4.19 kernel will work with Linux Mint 19 (or 18.3 for that matter).

Once I get this working I'll post again in case someone else has this same issue.
User avatar
AndyMH
Level 21
Level 21
Posts: 13575
Joined: Fri Mar 04, 2016 5:23 pm
Location: Wiltshire

Re: Bluetooth not operable "Searching for devices"

Post by AndyMH »

Easiest way to manage kernels is with ukuu:

https://www.omgubuntu.co.uk/2017/02/uku ... nel-ubuntu

4.19 will work with LM19, but didn't try it for long before reverting to 4.15.
Thinkcentre M720Q - LM21.3 cinnamon, 4 x T430 - LM21.3 cinnamon, Homebrew desktop i5-8400+GTX1080 Cinnamon 19.0
User avatar
premier69
Level 3
Level 3
Posts: 149
Joined: Thu Feb 22, 2018 6:29 pm
Location: Sweden

Re: Bluetooth not operable "Searching for devices"

Post by premier69 »

now i have the same problem, but i haven't been fiddling with any kernel changes nor has there been any updates installed. it just stopped working as expected after i smashed my first on the mouse pad out of frustration due to an unrelated issue i had...
OS: Linux Mint 19.3 Tricia x86_64 | Kernel: 5.3.0-28-generic | DE: Cinnamon 4.4.8 | CPU: AMD Ryzen 7 2700X (16) @ 4.000GHz | GPU: AMD Radeon 580 VRAM: 8GB | RAM: 16GB
Locked

Return to “Networking”