我的妻子不久前买了这台笔记本电脑，但蓝牙从未在 Kubuntu 上工作过。蓝牙管理器似乎在工作，但从未检测到蓝牙设备。其他设备也无法检测到这台笔记本电脑。我已经执行了以下查找故障的步骤，但未能纠正故障：
lsmod | grep bluetooth
bluetooth 1028096 44 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 16384 2 bluetooth
sudo systemctl status bluetooth
[sudo] password for ***:
● bluetooth.service - Bluetooth service
Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; preset: enabled)
Active: active (running) since Sat 2025-01-25 10:12:41 AEDT; 17min ago
Docs: man:bluetoothd(8)
Main PID: 1131 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 18643)
Memory: 3.2M (peak: 3.9M)
CPU: 95ms
CGroup: /system.slice/bluetooth.service
└─1131 /usr/libexec/bluetooth/bluetoothd
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSin>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSin>
Jan 25 10:12:51 ***-laptop bluetoothd[1131]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSou
HCI 配置：
hciconfig
hci0: Type: Primary Bus: USB
BD Address: FC:B0:DE:10:24:60 ACL MTU: 1021:8 SCO MTU: 255:12
UP RUNNING PSCAN ISCAN
RX bytes:1857 acl:0 sco:0 events:162 errors:0
TX bytes:7871 acl:0 sco:0 commands:162 errors:0
在这里，我尝试连接多个设备，但均未检测到：
bluetoothctl
Waiting to connect to bluetoothd...[bluetooth]# Agent registered
[bluetooth]# power on
[bluetooth]# Changing power on succeeded
[bluetooth]# scan on
[bluetooth]# SetDiscoveryFilter success
[bluetooth]# Discovery started
[bluetooth]# [CHG] Controller FC:B0:DE:10:24:60 Discovering: yes
[bluetooth]#
我也按照此帖子中的故障查找方法进行了操作，但也没有修复故障： 蓝牙未找到任何设备（Ubuntu 18.04）
Blueman 的反应与默认蓝牙管理器类似，它显示正在发送和接收的数据，但列表中没有显示任何设备。
[lsusb; sudo dmesg |egrep -i 'blue|firm'] 命令的结果如下：
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 001 Device 003: ID 322e:233b BillionPixels USB2.0 HD UVC WebCam
Bus 001 Device 004: ID 046d:0a64 Logitech, Inc. Logi USB Headset
Bus 001 Device 005: ID 0489:e112 Foxconn / Hon Hai Bluetooth Radio
Bus 001 Device 006: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
[sudo] password for ***:
[ 2.085384] usb 1-10: Product: Bluetooth Radio
[ 3.883063] Bluetooth: Core ver 2.22
[ 3.918107] NET: Registered PF_BLUETOOTH protocol family
[ 3.918113] Bluetooth: HCI device and connection manager initialized
[ 3.918121] Bluetooth: HCI socket layer initialized
[ 3.918124] Bluetooth: L2CAP socket layer initialized
[ 3.918130] Bluetooth: SCO socket layer initialized
[ 4.543165] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/adlp_dmc.bin (v2.20)
[ 4.561797] i915 0000:00:02.0: [drm] GT0: GuC firmware i915/adlp_guc_70.bin version 70.20.0
[ 4.561804] i915 0000:00:02.0: [drm] GT0: HuC firmware i915/tgl_huc.bin version 7.9.3
[ 4.565390] rtw89_8851be 0000:02:00.0: loaded firmware rtw89/rtw8851b_fw.bin
[ 4.567233] rtw89_8851be 0000:02:00.0: Firmware version 0.29.41.3 (65cefb31), cmd version 0, type 5
[ 4.567237] rtw89_8851be 0000:02:00.0: Firmware version 0.29.41.3 (65cefb31), cmd version 0, type 3
[ 6.308872] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 6.308881] Bluetooth: BNEP filters: protocol multicast
[ 6.308888] Bluetooth: BNEP socket layer initialized
[ 6.316031] Bluetooth: MGMT ver 1.22
[ 8.688539] Bluetooth: RFCOMM TTY layer initialized
[ 8.688549] Bluetooth: RFCOMM socket layer initialized
[ 8.688553] Bluetooth: RFCOMM ver 1.11
[ 67.674108] audit: type=1107 audit(1737921654.609:213): pid=1201 uid=101 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/" interface="org.freedesktop.DBus.ObjectManager" member="GetManagedObjects" mask="send" name="org.bluez" pid=3835 label="snap.opera.opera" peer_pid=1199 peer_label="unconfined"
[ 7257.641982] audit: type=1400 audit(1737928844.605:243): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater.firmware-notifier" name="/proc/sys/vm/max_map_count" pid=20976 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[14156.380869] audit: type=1107 audit(1737935743.272:265): pid=1201 uid=101 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/" interface="org.freedesktop.DBus.ObjectManager" member="GetManagedObjects" mask="send" name="org.bluez" pid=35462 label="snap.opera.opera" peer_pid=1199 peer_label="unconfined"
任何帮助都将不胜感激。
干杯。