Сопряжение Bluetooth не работает в Ubuntu 24.04

Question

У меня установлен Ubuntu 24.04 на моем новом настольном компьютере ABS, и, хотя hciconfig, bluetoothctl не показывают ошибок, я не могу увидеть какие-либо устройства при сканировании.

$ hciconfig
hci0:   Type: Primary  Bus: USB
        BD Address: FC:B0:DE:38:30:96  ACL MTU: 1021:8  SCO MTU: 255:12
        UP RUNNING PSCAN ISCAN
        RX bytes:5389 acl:0 sco:0 events:539 errors:0
        TX bytes:19604 acl:0 sco:0 commands:519 errors:0

Использование bluetoothctl вручную делает следующее:

$ bluetoothctl
Waiting to connect to bluetoothd...[bluetooth]# Agent registered
[bluetooth]# agent on
Agent is already registered
[bluetooth]# default-agent
[bluetooth]# Default agent request successful
[bluetooth]# scan on
[bluetooth]# SetDiscoveryFilter success
[bluetooth]# Discovery started
[bluetooth]# [CHG] Controller FC:B0:DE:38:30:96 Discovering: yes
[bluetooth]#

lsmod не показывает ничего странного, насколько я могу судить:

$ lsmod | grep btusb
btusb                  77824  0
btrtl                  32768  1 btusb
btintel                57344  1 btusb
btbcm                  24576  1 btusb
btmtk                  12288  1 btusb
bluetooth            1028096  46 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm

~ ⌚ 13:34:42
$ lsmod | grep bluetooth
bluetooth            1028096  46 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic           16384  2 bluetooth

Вот вывод lsusb; sudo dmesg | egrep -i 'blue|firm':

$ lsusb; sudo dmesg | egrep -i 'blue|firm'
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 003: ID 0b05:19af ASUSTek Computer, Inc. AURA LED Controller
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 0489:e112 Foxconn / Hon Hai Bluetooth Radio
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
[    1.157720] usb 3-1: Product: Bluetooth Radio
[    4.892212] systemd[1]: Mounting snap-firmware\x2dupdater-127.mount - Mount unit for firmware-updater, revision 127...
[    4.893131] systemd[1]: Mounting snap-firmware\x2dupdater-147.mount - Mount unit for firmware-updater, revision 147...
[    5.078863] Bluetooth: Core ver 2.22
[    5.103287] NET: Registered PF_BLUETOOTH protocol family
[    5.103290] Bluetooth: HCI device and connection manager initialized
[    5.103294] Bluetooth: HCI socket layer initialized
[    5.103296] Bluetooth: L2CAP socket layer initialized
[    5.103303] Bluetooth: SCO socket layer initialized
[    5.319068] rtw89_8851be 0000:08:00.0: loaded firmware rtw89/rtw8851b_fw.bin
[    5.319858] rtw89_8851be 0000:08:00.0: Firmware version 0.29.41.3 (65cefb31), cmd version 0, type 5
[    5.319861] rtw89_8851be 0000:08:00.0: Firmware version 0.29.41.3 (65cefb31), cmd version 0, type 3
[    6.292072] [drm] Loading DMUB firmware via PSP: version=0x05000F00
[    6.292458] [drm] Found VCN firmware Version ENC: 1.30 DEC: 3 VEP: 0 Revision: 4
[    6.292464] amdgpu 0000:0b:00.0: amdgpu: Will use PSP to load VCN firmware
[    7.299392] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    7.299396] Bluetooth: BNEP filters: protocol multicast
[    7.299401] Bluetooth: BNEP socket layer initialized
[    7.300285] Bluetooth: MGMT ver 1.22
[    9.138499] Bluetooth: RFCOMM TTY layer initialized
[    9.138505] Bluetooth: RFCOMM socket layer initialized
[    9.138508] Bluetooth: RFCOMM ver 1.11
[ 7300.714099] audit: type=1400 audit(1738440042.768:183): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater.firmware-notifier" name="/proc/sys/vm/max_map_count" pid=28130 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[18100.787075] audit: type=1400 audit(1738450842.532:184): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater.firmware-notifier" name="/proc/sys/vm/max_map_count" pid=74038 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

На этом этапе я исчерпал все идеи и буду весьма признателен за любую помощь. Ради “интереса”, вот сеанс отладки, который я попытался провести с chat-gpt

Сопряжение Bluetooth не работает в Ubuntu 24.04

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