Bluetooth can't find any device

Hi there

I've been trying to figure out why my Bluetooth isn't working for over half a year.
The system recognises the bluetooth adapters (usb and motherboard) but does not find any bluetooth devices when searching for them.

inixi -Faz:

> System:    Kernel: 5.15.2-zen1-1-zen x86_64 bits: 64 compiler: gcc v: 11.1.0
           parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-zen root=UUID=0343f8d6-8ed4-4ceb-b1ce-4bbae2a91b14 rw
           [email protected] quiet splash rd.udev.log_priority=3 vt.global_cursor_default=0
           systemd.unified_cgroup_hierarchy=1 loglevel=3
           Desktop: KDE Plasma 5.23.3 tk: Qt 5.15.2 info: latte-dock wm: kwin_x11 vt: 1 dm: SDDM Distro: Garuda Linux
           base: Arch Linux
Machine:   Type: Desktop Mobo: Micro-Star model: B550M PRO-VDH WIFI (MS-7C95) v: 1.0 serial: <filter>
           UEFI: American Megatrends LLC. v: 2.60 date: 01/14/2021
CPU:       Info: 6-Core model: AMD Ryzen 5 5600X bits: 64 type: MT MCP arch: Zen 3 family: 19 (25) model-id: 21 (33)
           stepping: 0 microcode: A201009 cache: L2: 3 MiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 88805
           Speed: 3542 MHz min/max: 2200/3700 MHz boost: enabled Core speeds (MHz): 1: 3542 2: 4017 3: 3649 4: 3592 5: 3600
           6: 3630 7: 3563 8: 3601 9: 3861 10: 3600 11: 3827 12: 3600
           Vulnerabilities: Type: itlb_multihit status: Not affected
           Type: l1tf status: Not affected
           Type: mds status: Not affected
           Type: meltdown status: Not affected
           Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl
           Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
           Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional, IBRS_FW, STIBP: always-on, RSB filling
           Type: srbds status: Not affected
           Type: tsx_async_abort status: Not affected
Graphics:  Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: ASUSTeK driver: nvidia v: 495.44 alternate: nouveau,nvidia_drm
           bus-ID: 2b:00.0 chip-ID: 10de:1b81 class-ID: 0300
           Display: x11 server: X.Org 1.21.1.1 compositor: kwin_x11 driver: loaded: nvidia display-ID: :0 screens: 1
           Screen-1: 0 s-res: 1920x1080 s-dpi: 93 s-size: 524x292mm (20.6x11.5") s-diag: 600mm (23.6")
           Monitor-1: DP-2 res: 1920x1080 hz: 60 dpi: 94 size: 521x293mm (20.5x11.5") diag: 598mm (23.5")
           OpenGL: renderer: NVIDIA GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 495.44 direct render: Yes
Audio:     Device-1: NVIDIA GP104 High Definition Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel bus-ID: 2b:00.1
           chip-ID: 10de:10f0 class-ID: 0403
           Device-2: Advanced Micro Devices [AMD] Starship/Matisse HD Audio vendor: Micro-Star MSI driver: snd_hda_intel
           v: kernel bus-ID: 2d:00.4 chip-ID: 1022:1487 class-ID: 0403
           Sound Server-1: ALSA v: k5.15.2-zen1-1-zen running: yes
           Sound Server-2: JACK v: 1.9.19 running: no
           Sound Server-3: PulseAudio v: 15.0 running: yes
           Sound Server-4: PipeWire v: 0.3.40 running: yes
Network:   Device-1: Intel Dual Band Wireless-AC 3168NGW [Stone Peak] driver: iwlwifi v: kernel bus-ID: 29:00.0
           chip-ID: 8086:24fb class-ID: 0280
           IF: wlo1 state: up mac: <filter>
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Micro-Star MSI driver: r8169 v: kernel
           port: f000 bus-ID: 2a:00.0 chip-ID: 10ec:8168 class-ID: 0200
           IF: enp42s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
           IF-ID-1: pan1 state: down mac: <filter>
Bluetooth: Device-1: ASUSTek ASUS USB-BT500 type: USB driver: btusb v: 0.8 bus-ID: 1-5:2 chip-ID: 0b05:190e class-ID: e001
           serial: <filter>
           Report: bt-adapter ID: hci0 rfk-id: 0 state: up address: N/A
           Device-2: Intel Wireless-AC 3168 Bluetooth type: USB driver: btusb v: 0.8 bus-ID: 1-9:5 chip-ID: 8087:0aa7
           class-ID: e001
           Report: ID: hci1 rfk-id: 1 state: up address: <filter>
Drives:    Local Storage: total: 939.01 GiB used: 193.05 GiB (20.6%)
           SMART Message: Unable to run smartctl. Root privileges required.
           ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital model: WDS100T2B0C-00PXH0 size: 931.51 GiB block-size:
           physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter> rev: 211070WD temp: 31.9 C
           scheme: GPT
           ID-2: /dev/sda maj-min: 8:0 type: USB model: N/A size: 7.5 GiB block-size: physical: 512 B logical: 512 B type: N/A
           serial: <filter> rev: 2.00 scheme: MBR
           SMART Message: Unknown USB bridge. Flash drive/Unsupported enclosure?
Partition: ID-1: / raw-size: 931.26 GiB size: 931.26 GiB (100.00%) used: 193.05 GiB (20.7%) fs: btrfs dev: /dev/nvme0n1p2
           maj-min: 259:2
           ID-2: /boot/efi raw-size: 260 MiB size: 256 MiB (98.46%) used: 546 KiB (0.2%) fs: vfat dev: /dev/nvme0n1p1
           maj-min: 259:1
           ID-3: /home raw-size: 931.26 GiB size: 931.26 GiB (100.00%) used: 193.05 GiB (20.7%) fs: btrfs dev: /dev/nvme0n1p2
           maj-min: 259:2
           ID-4: /var/log raw-size: 931.26 GiB size: 931.26 GiB (100.00%) used: 193.05 GiB (20.7%) fs: btrfs
           dev: /dev/nvme0n1p2 maj-min: 259:2
           ID-5: /var/tmp raw-size: 931.26 GiB size: 931.26 GiB (100.00%) used: 193.05 GiB (20.7%) fs: btrfs
           dev: /dev/nvme0n1p2 maj-min: 259:2
Swap:      Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default)
           ID-1: swap-1 type: zram size: 31.34 GiB used: 2.2 MiB (0.0%) priority: 100 dev: /dev/zram0
Sensors:   Message: No sensor data found. Is lm-sensors configured?
Info:      Processes: 314 Uptime: 1h 34m wakeups: 0 Memory: 31.34 GiB used: 4.59 GiB (14.6%) Init: systemd v: 249
           tool: systemctl Compilers: gcc: 11.1.0 clang: 13.0.0 Packages: pacman: 1735 lib: 498 flatpak: 0 Shell: fish
           v: 3.3.1 running-in: kitty inxi: 3.3.08

can devices recognise your PC , by bluetooth ?

1 Like

Maybe you could try checking this thread.
It was about your same WiFi+USB adapter.
Apart the solution, there are several interesting troubleshooting steps.

3 Likes

this worked
thank you very much

1 Like

You're very welcome!
But I guess you should thank also that user.
I remember it was a long fight and I expected something similar :wink:

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