Can't use bluetooth after update

illidan1371 · 11 January 2021 07:31

hi
i did not have any issue with my bluetooth card before a major update a few weeks ago , after the update i noticed that the bluetooth icon no longer appears on my task bar , i go to settings and click on enable but nothing happens, hovering over the bluetooth icon in the “show hidden icons” menu showed “no adapter detected” but now i don’t even have a bluetooth icon even in the hidden icons window.
here is my system info:

System:    Kernel: 5.10.2-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 Desktop: KDE Plasma 5.20.4 Distro: Manjaro Linux 
Machine:   Type: Laptop System: ASUSTeK product: K46CB v: 1.0 serial: <filter> 
           Mobo: ASUSTeK model: K46CB v: 1.0 serial: <filter> UEFI: American Megatrends v: K46CB.204 date: 02/26/2013 
Battery:   ID-1: BAT0 charge: 0 Wh condition: 4.0/44.6 Wh (9%) model: ASUSTeK K56--30 status: Charging 
CPU:       Info: Dual Core model: Intel Core i7-3537U bits: 64 type: MT MCP arch: Ivy Bridge rev: 9 L2 cache: 4 MiB 
           flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19960 
           Speed: 798 MHz min/max: 800/3100 MHz Core speeds (MHz): 1: 798 2: 798 3: 798 4: 798 
Graphics:  Device-1: Intel 3rd Gen Core processor Graphics vendor: ASUSTeK driver: i915 v: kernel bus ID: 00:02.0 
           Device-2: NVIDIA GK107M [GeForce GT 740M] vendor: ASUSTeK driver: nouveau v: kernel bus ID: 01:00.0 
           Device-3: IMC Networks USB Camera type: USB driver: uvcvideo bus ID: 1-1.3:4 
           Display: x11 server: X.Org 1.20.10 driver: intel,nouveau unloaded: modesetting resolution: 1366x768~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2) v: 4.2 Mesa 20.3.1 direct render: Yes 
Audio:     Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel 
           bus ID: 00:1b.0 
           Device-2: NVIDIA GK107 HDMI Audio driver: snd_hda_intel v: kernel bus ID: 01:00.1 
           Sound Server: ALSA v: k5.10.2-2-MANJARO 
Network:   Device-1: Qualcomm Atheros AR9485 Wireless Network Adapter vendor: Lite-On driver: ath9k v: kernel port: e000 
           bus ID: 03:00.0 
           IF: wlp3s0 state: up mac: <filter> 
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: ASUSTeK driver: r8169 v: kernel port: d000 
           bus ID: 04:00.2 
           IF: enp4s0f2 state: down mac: <filter> 
           Device-3: Lite-On Atheros Bluetooth type: USB driver: btusb bus ID: 1-1.1:5 
Drives:    Local Storage: total: 931.51 GiB used: 134.14 GiB (14.4%) 
           ID-1: /dev/sda vendor: Seagate model: ST1000LM024 HN-M101MBB size: 931.51 GiB 
Partition: ID-1: / size: 915.6 GiB used: 134.14 GiB (14.7%) fs: ext4 dev: /dev/sda2 
           ID-2: /boot/efi size: 299.4 MiB used: 312 KiB (0.1%) fs: vfat dev: /dev/sda1 
Swap:      Alert: No Swap data was found. 
Sensors:   System Temperatures: cpu: 65.0 C mobo: N/A gpu: nouveau temp: 64.0 C 
           Fan Speeds (RPM): cpu: 3200 
Info:      Processes: 196 Uptime: 41m Memory: 5.69 GiB used: 1.93 GiB (33.9%) Init: systemd Compilers: gcc: 10.2.0 
           Packages: 1382 Shell: Bash v: 5.1.0 inxi: 3.2.01

what i have tried so far:

i have installed bluez and bluez-utils from pacman
enabled bluetooth from terminal using sudo modprobe btusb then sudo systemctl start bluetooth
installed blueman bluetooth manager

nothing seems to work. it gets even more strange when i check the bluetooth service log using sudo systemctl status bluetooth -l

luetooth.service - Bluetooth service
Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2021-01-11 10:24:07 +0330; 11min ago
Docs: man:bluetoothd(8)
Main PID: 2666 (bluetoothd)
Status: “Running”
Tasks: 1 (limit: 6973)
Memory: 712.0K
CGroup: /system.slice/bluetooth.service
└─2666 /usr/lib/bluetooth/bluetoothd

Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LES>
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LES>
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEM>
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEM>
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEC>
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEC>
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEA>
Jan 11 10:24:07 Armin systemd[1]: Started Bluetooth service.
Jan 11 10:24:07 Armin bluetoothd[2666]: Starting SDP server
Jan 11 10:24:07 Armin bluetoothd[2666]: Bluetooth management interface 1.18 initialized
lines 1-21/21 (END)…skipping…
● bluetooth.service - Bluetooth service
Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2021-01-11 10:24:07 +0330; 11min ago
Docs: man:bluetoothd(8)
Main PID: 2666 (bluetoothd)
Status: “Running”
Tasks: 1 (limit: 6973)
Memory: 712.0K
CGroup: /system.slice/bluetooth.service
└─2666 /usr/lib/bluetooth/bluetoothd

Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEScanIntervalConnect” in group “Controller”
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEScanWindowConnect” in group “Controller”
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEMinConnectionInterval” in group “Controller”
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEMaxConnectionInterval” in group “Controller”
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEConnectionLatency” in group “Controller”
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEConnectionSupervisionTimeout” in group “Controller”
Jan 11 10:24:07 Armin bluetoothd[2666]: src/main.c:parse_controller_config() Key file does not have key “LEAutoconnecttimeout” in group “Controller”
Jan 11 10:24:07 Armin systemd[1]: Started Bluetooth service.
Jan 11 10:24:07 Armin bluetoothd[2666]: Starting SDP server
Jan 11 10:24:07 Armin bluetoothd[2666]: Bluetooth management interface 1.18 initialized

ceres · 11 January 2021 09:09

It may be new linux kernel 5.10.2
try to switch 5.9.16 or 5.4
if you decide to keep 5.9.16 (or other than 5.10.2) and have linux-latest package installed, you must uninstall it before uninstalling linux 5.10.2
I hope 5.10.5 will be fixed since it will be lts.
see Bluetooth detected but doesn't work. Fresh install

illidan1371 · 11 January 2021 14:50

thank you very much! this solved my issue! i downgraded my kernel to 5.4

system · 26 January 2021 14:50

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