我使用的是 a1369 MacBook Air，运行的是 kde plasma。Bluedevil 输出“没有可用的蓝牙适配器”，blueman 也无法使用。
我看见https://forums.linuxmint.com/viewtopic.php?t=381073然而，这篇文章却告诉我，降到 5.4 内核是不现实的。
已安装：bluez bluez-utils bluez-utils-compt broadcomm-wl broadcom-wl-dkms broadcom-bt-firmware blueman
尝试过：
systemctl 启用蓝牙 systemctl 启动蓝牙 systemctl 启动 dbus sudo modprobe btusb
输出：
lsmod | grep 蓝色
bluetooth 1089536 14 btrtl,btmtk,btintel,btbcm,bnep,btusb
ecdh_generic 16384 1 bluetooth
rfkill 40960 9 bluetooth,brcmsmac,cfg80211
crc16 12288 2 bluetooth,ext4
rfkill 列表
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
lspci -knn | grep Net -A2; lsusb
02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43224 802.11a/b/g/n [14e4:4353] (rev 01)
Subsystem: Apple Inc. AirPort Extreme [106b:00e9]
Kernel driver in use: bcma-pci-bridge
Bus 002 Device 004: ID 13fe:5200 Phison Electronics Corp. DataTraveler R3.0
Bus 002 Device 003: ID 05ac:8404 Apple, Inc. Internal Memory Card Reader
Bus 002 Device 002: ID 0424:2513 Microchip Technology, Inc. (formerly SMSC) 2.0 Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 05ac:850a Apple, Inc. FaceTime Camera
Bus 003 Device 005: ID 05ac:024c Apple, Inc. Apple Internal Keyboard / Trackpad
Bus 003 Device 008: ID 05ac:821f Apple, Inc. Built-in Bluetooth 2.0+EDR HCI
Bus 003 Device 007: ID 05ac:820b Apple, Inc. Bluetooth HID Mouse
Bus 003 Device 006: ID 05ac:820a Apple, Inc. Bluetooth HID Keyboard
Bus 003 Device 004: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 003 Device 002: ID 0424:2513 Microchip Technology, Inc. (formerly SMSC) 2.0 Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
sudo dmesg | grep Blue
[ 1.931453] usb 3-1.1.3: Product: Bluetooth USB Host Controller
[ 8.722349] Bluetooth: Core ver 2.22
[ 8.722383] Bluetooth: HCI device and connection manager initialized
[ 8.722389] Bluetooth: HCI socket layer initialized
[ 8.722393] Bluetooth: L2CAP socket layer initialized
[ 8.722398] Bluetooth: SCO socket layer initialized
[ 15.910087] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 15.910093] Bluetooth: BNEP filters: protocol multicast
[ 15.910099] Bluetooth: BNEP socket layer initialized