我目前正在使用 Arch Linux，但无法在其中使用我的蓝牙驱动程序。我的 PC 是笔记本电脑，DELL Inspiron n4030 i3-380m，内置混合 BROADCOM 4313 Wifi 和蓝牙卡。wifi 工作正常，但没有迹象表明蓝牙存在。
我已经安装了 bluez 和 blueman。
我使用的 wifi 驱动程序是b43
sudo lspci -vnn -d 14e4:
12:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
Subsystem: Dell Inspiron M5010 / XPS 8300 [1028:0010]
Physical Slot: 0-1
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at fbb00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [58] Vendor Specific Information: Len=78 <?>
Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [13c] Virtual Channel
Capabilities: [160] Device Serial Number 00-00-78-ff-ff-4a-cc-af
Capabilities: [16c] Power Budgeting <?>
Kernel driver in use: bcma-pci-bridge
Kernel modules: bcma
当我使用以下命令启动蓝牙时
sudo modprobe btusb; systemctl start bluetooth
sudo dmesg | grep -i bluetooth：
[ 1334.131956] Bluetooth: Core ver 2.22
[ 1334.132020] NET: Registered PF_BLUETOOTH protocol family
[ 1334.132022] Bluetooth: HCI device and connection manager initialized
[ 1334.132029] Bluetooth: HCI socket layer initialized
[ 1334.132032] Bluetooth: L2CAP socket layer initialized
[ 1334.132038] Bluetooth: SCO socket layer initialized
[ 1342.140875] audit: type=1130 audit(1632067873.984:152): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 1342.189409] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 1342.189419] Bluetooth: BNEP filters: protocol multicast
[ 1342.189430] Bluetooth: BNEP socket layer initialized
sudo lsmod | grep bluetooth
bluetooth 729088 11 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic 16384 1 bluetooth
rfkill 32768 10 bluetooth,dell_laptop,brcmsmac,cfg80211
crc16 16384 2 bluetooth,ext4
sudo rfkill list：
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
当我做bluetoothctl
$ bluetoothctl
Agent registered
[bluetooth]# power on
No default controller available
[bluetooth]#
如果您需要更多日志，我可以提供。是的，蓝牙模块可以工作，因为我曾在 ubuntu（不知怎么的，我不记得了）和装有联想驱动程序的 windows10 上使用过它。
lsusb：
Bus 002 Device 003: ID 0000:0538 USB OPTICAL MOUSE
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 007: ID 0c45:6488 Microdia Laptop_Integrated_Webcam_0.3M
Bus 001 Device 004: ID 0bda:0138 Realtek Semiconductor Corp. RTS5138 Card Reader Controller
Bus 001 Device 006: ID 413c:8162 Dell Computer Corp. Integrated Touchpad [Synaptics]
Bus 001 Device 005: ID 413c:8161 Dell Computer Corp. Integrated Keyboard
Bus 001 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub