Bluetooth Doesn't work at all :/

[McKlane]

Hello guys,
I just installed Kubuntu 26.04 on a NUC10i7FNH and everything work like a charm except Bluetooth.
I double checked the specs and the Nuc is supposed to have "Intel AX201 802.11AX dual-band 2.4 and 5.0 Ghz + Bluetooth V5.1"
I tried many things reading different forums like install BlueZ and Blueman ... but nothing seems to work
I'd appreciate some help

[McKlane]

I've done a Inxi check as suggested and it return me this :

[HTML]System:
Host: pepedada-nuc10i7fnh Kernel: 7.0.0-30-generic arch: x86_64 bits: 64
Desktop: KDE Plasma v: 6.6.6 Distro: Kubuntu 26.04.1 LTS (Resolute
Raccoon)
Machine:
Type: Mini-pc System: Intel Client Systems product: NUC10i7FNH v: M38010-308
serial: <superuser required>
Mobo: Intel model: NUC10i7FNB v: M38062-307 serial: <superuser required>
Firmware: UEFI vendor: Intel v: FNCML357.0058.2022.0720.1011
date: 07/20/2022
CPU:
Info: 6-core model: Intel Core i7-10710U bits: 64 type: MT MCP cache:
L2: 1.5 MiB
Speed (MHz): avg: 800 min/max: 400/4700 cores: 1: 800 2: 800 3: 800 4: 800
5: 800 6: 800 7: 800 8: 800 9: 800 10: 800 11: 800 12: 800
Graphics:
Device-1: Intel Comet Lake UHD Graphics driver: i915 v: kernel
Display: wayland server: Xwayland v: 24.1.10 compositor: kwin_wayland
driver: gpu: i915 resolution: 1920x1080~60Hz
API: EGL v: 1.5 drivers: iris,swrast
platforms: gbm,wayland,x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 26.0.8-1ubuntu0.3
renderer: Mesa Intel UHD Graphics (CML GT2)
API: Vulkan v: 1.4.341 drivers: intel,llvmpipe surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info x11: xdriinfo,
xdpyinfo, xprop, xrandr
Audio:
Device-1: Intel Comet Lake PCH-LP cAVS driver: snd_hda_intel
API: ALSA v: k7.0.0-30-generic status: kernel-api
Server-1: PipeWire v: 1.6.2 status: active
Network:
Device-1: Intel Comet Lake PCH-LP CNVi WiFi driver: iwlwifi
IF: wlp0s20f3 state: up mac: bc:6e:e2:82:a7:62
Device-2: Intel Ethernet I219-V driver: e1000e
IF: eno1 state: down mac: 88:ae:dd:04:e0:b7
Bluetooth:
Device-1: Intel AX201 Bluetooth driver: btusb type: USB
Report: hciconfig ID: hci0 rfk-id: 7 state: down
bt-service: enabled,running rfk-block: hardware: no software: no
address: 00:00:00:00:00:00
Drives:
Local Storage: total: 232.89 GiB used: 9.61 GiB (4.1%)
ID-1: /dev/nvme0n1 vendor: Kingston model: SNVS250G size: 232.89 GiB
Partition:
ID-1: / size: 227.88 GiB used: 9.6 GiB (4.2%) fs: ext4 dev: /dev/nvme0n1p2
ID-2: /boot/efi size: 299.4 MiB used: 8.1 MiB (2.7%) fs: vfat
dev: /dev/nvme0n1p1
Swap:
ID-1: swap-1 type: file size: 512 MiB used: 0 KiB (0.0%) file: /swapfile
Sensors:
System Temperatures: cpu: 45.0 C pch: 37.0 C mobo: N/A
Fan Speeds (rpm): N/A
Info:
Memory: total: 16 GiB note: est. available: 15.33 GiB used: 2.83 GiB (18.5%)
Processes: 300 Uptime: 40m Shell: Bash inxi: 3.3.40

[/HTML]

[die.boer]

please post the complete output of these 2 commands

lsusb | grep -i -E 'intel|bluetooth'

sudo dmesg | grep -i -E 'bluetooth|btusb|firmware' | tail -50

[McKlane]

sorry something went wrong when copying my konsole :/

[McKlane]

[HTML]epedada@pepedada-nuc10i7fnh:~$ lsusb | grep -i -E 'intel|bluetooth'
Bus 001 Device 005: ID 8087:0026 Intel Corp. AX201 Bluetooth
pepedada@pepedada-nuc10i7fnh:~$
[/HTML]


[HTML]pepedada@pepedada-nuc10i7fnh:~$ sudo dmesg | grep -i -E 'bluetooth|btusb|firmware' | tail -50
[sudo: authenticate] Password:
[ 1.020155] ACPI: thermal: [Firmware Bug]: No valid trip points!
[ 3.601854] systemd[1]: systemd-hibernate-clear.service - Clear Stale Hibernate Storage Info skipped, unmet
condition check ConditionPathExists=/sys/firmware/efi/efivars/HibernateLocation-8cf2644b-4b0b-428f-9387-6d876
050dc67
[ 4.083613] Bluetooth: Core ver 2.22
[ 4.083873] NET: Registered PF_BLUETOOTH protocol family
[ 4.083876] Bluetooth: HCI device and connection manager initialized
[ 4.083881] Bluetooth: HCI socket layer initialized
[ 4.083884] Bluetooth: L2CAP socket layer initialized
[ 4.083889] Bluetooth: SCO socket layer initialized
[ 4.206088] usbcore: registered new interface driver btusb
[ 4.208758] iwlwifi 0000:00:14.3: loaded firmware version 77.f39cc7f9.0 QuZ-a0-hr-b0-77.ucode op_mode iwlmv
m
[ 4.905563] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 5.938384] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 5.938389] Bluetooth: BNEP filters: protocol multicast
[ 5.938394] Bluetooth: BNEP socket layer initialized
[ 6.267651] Bluetooth: hci0: command 0xfc05 tx timeout
[ 6.267659] Bluetooth: hci0: Resetting usb device.
[ 6.267703] Bluetooth: hci0: Reading Intel version command failed (-110)
[ 8.570632] Bluetooth: hci0: Reading Intel version command failed (-110)
[ 8.570645] Bluetooth: hci0: command 0xfc05 tx timeout
[ 8.570652] Bluetooth: hci0: Resetting usb device.
[ 10.874603] Bluetooth: hci0: command 0xfc05 tx timeout
[ 10.874617] Bluetooth: hci0: Resetting usb device.
[ 10.874621] Bluetooth: hci0: Reading Intel version command failed (-110)
[ 13.178578] Bluetooth: hci0: Reading Intel version command failed (-110)
[ 13.178583] Bluetooth: hci0: command 0xfc05 tx timeout
[ 13.178589] Bluetooth: hci0: Resetting usb device.
[ 15.459449] Bluetooth: hci0: Reading Intel version command failed (-110)
[ 15.459483] Bluetooth: hci0: command 0xfc05 tx timeout
[ 15.459504] Bluetooth: hci0: Resetting usb device.
[ 17.585514] Bluetooth: hci0: Reading Intel version command failed (-110)
[ 17.585523] Bluetooth: hci0: command 0xfc05 tx timeout
[ 17.585546] Bluetooth: hci0: Resetting usb device.
[ 19.712133] Bluetooth: hci0: Reading Intel version command failed (-110)
pepedada@pepedada-nuc10i7fnh:~$
[/HTML]

[die.boer]

ok run this

sudo rmmod btusb && sleep 2 && sudo modprobe btusb

and immediately afterwards ,run these 2 and post the output

dmesg | tail -20

hciconfig -a

[McKlane]

[HTML]pepedada@pepedada-nuc10i7fnh:~$ sudo rmmod btusb && sleep 2 && sudo modprobe btusb
[sudo: authenticate] Password:
pepedada@pepedada-nuc10i7fnh:~$ dmesg | tail -20
dmesg: read kernel buffer failed: Operation not permitted
pepedada@pepedada-nuc10i7fnh:~$ hciconfig -a
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:4 acl:0 sco:0 commands:1 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: PERIPHERAL ACCEPT

pepedada@pepedada-nuc10i7fnh:~$

[/HTML]

[die.boer]

ok sorry , we need sudo (permission got dropped since your last sudo timed out)
so try again please these 3

sudo dmesg | tail -30

sudo hciconfig hci0 up

sudo dmesg | tail -10

[McKlane]

ok


A

  [FONT=monospace][COLOR=#54ff54][B]pepedada@pepedada-nuc10i7fnh[/B][/COLOR][COLOR=#000000]:[/COLOR][COLOR=#5454ff][B]~[/B][/COLOR][COLOR=#000000]$ sudo dmesg | tail -30[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10087.737757] ata3: SATA link down (SStatus 4 SControl 300)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.075433] mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_o[/COLOR]
[COLOR=#000000]ps [i915])[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.075959] OOM killer enabled.[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.075965] Restarting tasks: Starting[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.077688] Restarting tasks: Done[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.077709] efivarfs: resyncing variable state[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.077834] efivarfs: removing variable WriteOnceStatus-4b3082a3-80c6-4d7e-9cd0-583917265df1[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.091478] efivarfs: creating variable WriteOnceStatus-4b3082a3-80c6-4d7e-9cd0-583917265df1[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.098546] efivarfs: finished resyncing variable state[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.098564] random: crng reseeded on system resumption[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.098607] PM: suspend exit[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10088.200370] e1000e 0000:00:1f.6 eno1: NIC Link is Down[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.538294] wlp0s20f3: authenticate with 78:81:02:5d:ae:b3 (local address=bc:6e:e2:82:a7:62)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.539418] wlp0s20f3: send auth to 78:81:02:5d:ae:b3 (try 1/3)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.567774] wlp0s20f3: authenticated[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.569093] wlp0s20f3: associate with 78:81:02:5d:ae:b3 (try 1/3)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.573178] wlp0s20f3: RX AssocResp from 78:81:02:5d:ae:b3 (capab=0x1511 status=0 aid=13)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.587200] wlp0s20f3: associated[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][10091.587366] wlp0s20f3: Limiting TX power to 27 (27 - 0) dBm as advertised by 78:81:02:5d:ae:b3[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][11893.113309] audit: type=1400 audit(1788465692.095:282): apparmor="DENIED" operation="open" class="file" pro[/COLOR]
[COLOR=#000000]file="snap.firefox.firefox" name="/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/snap.f[/COLOR]
[COLOR=#000000]irefox.firefox-3c389f52-1aac-4390-8d94-387555dc24a6.scope/cpu.max" pid=11315 comm=57656220436F6E74656E74 reque[/COLOR]
[COLOR=#000000]sted_mask="r" denied_mask="r" fsuid=1000 ouid=1000[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][11895.275439] audit: type=1400 audit(1788465694.257:283): apparmor="DENIED" operation="open" class="file" pro[/COLOR]
[COLOR=#000000]file="snap.firefox.firefox" name="/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/snap.f[/COLOR]
[COLOR=#000000]irefox.firefox-3c389f52-1aac-4390-8d94-387555dc24a6.scope/cpu.max" pid=11358 comm=57656220436F6E74656E74 reque[/COLOR]
[COLOR=#000000]sted_mask="r" denied_mask="r" fsuid=1000 ouid=1000[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][11900.823880] audit: type=1400 audit(1788465699.806:284): apparmor="DENIED" operation="open" class="file" pro[/COLOR]
[COLOR=#000000]file="snap.firefox.firefox" name="/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/snap.f[/COLOR]
[COLOR=#000000]irefox.firefox-3c389f52-1aac-4390-8d94-387555dc24a6.scope/cpu.max" pid=11397 comm=57656220436F6E74656E74 reque[/COLOR]
[COLOR=#000000]sted_mask="r" denied_mask="r" fsuid=1000 ouid=1000[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][11907.162784] perf: interrupt took too long (3160 > 3127), lowering kernel.perf_event_max_sample_rate to 6300[/COLOR]
[COLOR=#000000]0[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12024.130339] usbcore: deregistering interface driver btusb[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12026.234537] usbcore: registered new interface driver btusb[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12028.288957] Bluetooth: hci0: Reading Intel version command failed (-110)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12028.288992] Bluetooth: hci0: command 0xfc05 tx timeout[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12028.289018] Bluetooth: hci0: Resetting usb device.[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12028.405521] usb 1-10: reset full-speed USB device number 5 using xhci_hcd[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#000000][12030.592894] Bluetooth: hci0: Reading Intel version command failed (-110)[/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#54ff54][B]pepedada@pepedada-nuc10i7fnh[/B][/COLOR][COLOR=#000000]:[/COLOR][COLOR=#5454ff][B]~[/B][/COLOR][COLOR=#000000]$ [/COLOR][/FONT]

​

B [HTML] pepedada@pepedada-nuc10i7fnh:~$ sudo hciconfig hci0 up
Can't init device hci0: Connection timed out (110)

[/HTML]

C [HTML] pepedada@pepedada-nuc10i7fnh:~$ sudo dmesg | tail -10
[12733.934558] usb 1-10: reset full-speed USB device number 5 using xhci_hcd
[12736.121111] Bluetooth: hci0: command 0xfc05 tx timeout
[12736.121126] Bluetooth: hci0: Reading Intel version command failed (-110)
[12736.121167] Bluetooth: hci0: Resetting usb device.
[12736.244559] usb 1-10: reset full-speed USB device number 5 using xhci_hcd
[12738.425084] Bluetooth: hci0: command 0xfc05 tx timeout
[12738.425108] Bluetooth: hci0: Resetting usb device.
[12738.425140] Bluetooth: hci0: Reading Intel version command failed (-110)
[12738.546528] usb 1-10: reset full-speed USB device number 5 using xhci_hcd
[12740.729015] Bluetooth: hci0: Reading Intel version command failed (-110)
pepedada@pepedada-nuc10i7fnh:~$

[/HTML]

[McKlane]

oups sorry ... I repost the A


A [HTML] pepedada@pepedada-nuc10i7fnh:~$ sudo dmesg | tail -30
[10087.737757] ata3: SATA link down (SStatus 4 SControl 300)
[10088.075433] mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_o
ps [i915])
[10088.075959] OOM killer enabled.
[10088.075965] Restarting tasks: Starting
[10088.077688] Restarting tasks: Done
[10088.077709] efivarfs: resyncing variable state
[10088.077834] efivarfs: removing variable WriteOnceStatus-4b3082a3-80c6-4d7e-9cd0-583917265df1
[10088.091478] efivarfs: creating variable WriteOnceStatus-4b3082a3-80c6-4d7e-9cd0-583917265df1
[10088.098546] efivarfs: finished resyncing variable state
[10088.098564] random: crng reseeded on system resumption
[10088.098607] PM: suspend exit
[10088.200370] e1000e 0000:00:1f.6 eno1: NIC Link is Down
[10091.538294] wlp0s20f3: authenticate with 78:81:02:5d:ae:b3 (local address=bc:6e:e2:82:a7:62)
[10091.539418] wlp0s20f3: send auth to 78:81:02:5d:ae:b3 (try 1/3)
[10091.567774] wlp0s20f3: authenticated
[10091.569093] wlp0s20f3: associate with 78:81:02:5d:ae:b3 (try 1/3)
[10091.573178] wlp0s20f3: RX AssocResp from 78:81:02:5d:ae:b3 (capab=0x1511 status=0 aid=13)
[10091.587200] wlp0s20f3: associated
[10091.587366] wlp0s20f3: Limiting TX power to 27 (27 - 0) dBm as advertised by 78:81:02:5d:ae:b3
[11893.113309] audit: type=1400 audit(1788465692.095:282): apparmor="DENIED" operation="open" class="file" pro
file="snap.firefox.firefox" name="/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/snap.f
irefox.firefox-3c389f52-1aac-4390-8d94-387555dc24a6.scope/cpu.max" pid=11315 comm=57656220436F6E74656E74 reque
sted_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[11895.275439] audit: type=1400 audit(1788465694.257:283): apparmor="DENIED" operation="open" class="file" pro
file="snap.firefox.firefox" name="/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/snap.f
irefox.firefox-3c389f52-1aac-4390-8d94-387555dc24a6.scope/cpu.max" pid=11358 comm=57656220436F6E74656E74 reque
sted_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[11900.823880] audit: type=1400 audit(1788465699.806:284): apparmor="DENIED" operation="open" class="file" pro
file="snap.firefox.firefox" name="/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/snap.f
irefox.firefox-3c389f52-1aac-4390-8d94-387555dc24a6.scope/cpu.max" pid=11397 comm=57656220436F6E74656E74 reque
sted_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[11907.162784] perf: interrupt took too long (3160 > 3127), lowering kernel.perf_event_max_sample_rate to 6300
0
[12024.130339] usbcore: deregistering interface driver btusb
[12026.234537] usbcore: registered new interface driver btusb
[12028.288957] Bluetooth: hci0: Reading Intel version command failed (-110)
[12028.288992] Bluetooth: hci0: command 0xfc05 tx timeout
[12028.289018] Bluetooth: hci0: Resetting usb device.
[12028.405521] usb 1-10: reset full-speed USB device number 5 using xhci_hcd
[12030.592894] Bluetooth: hci0: Reading Intel version command failed (-110)
pepedada@pepedada-nuc10i7fnh:~$
[/HTML]

[die.boer]

please try a "cold boot" ...
Completely shut down the NUC (Don't reboot) like this

sudo poweroff

Once it has completely powered off, unplug the power cable.
Wait about 30 seconds.
Then plug it back in and boot Kubuntu normally.
See if Bluetooth works?
(also can run

inxi -Eazy

and post output)

[McKlane]

OK I do that ...

[McKlane]

Wow !!! It works !!! thank you mate

[McKlane]

[HTML] pepedada@pepedada-nuc10i7fnh:~$ inxi -Eazy
Bluetooth:
Device-1: Intel AX201 Bluetooth driver: btusb v: 0.8 type: USB rev: 2.0
speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-10:4 chip-ID: 8087:0026
class-ID: e001
Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 5.2
lmp-v: 11 sub-v: 2253 hci-v: 11 rev: 2253 class-ID: 6c0104
Info: acl-mtu: 1021:4 sco-mtu: 96:6 link-policy: rswitch sniff
link-mode: peripheral accept service-classes: rendering, capturing, audio,
telephony
pepedada@pepedada-nuc10i7fnh:~$


[/HTML]

[die.boer]

Good good everything seems fine now .
The AX201 Bluetooth controller had become stuck. A normal reboot wasn't resetting it properly, but removing power completely did. The important part is that Kubuntu, BlueZ and the Bluetooth driver are all basically fine.
If it gets stuck again ,let us know.