arch安装完成之后不能使用笔记本自带的无线网卡

问题描述如下

我笔记本的wifi网卡识别不了,不知道为什么??
使用ifconfig -a 只列出了有线网卡以及外接的无线网卡如下
enp4s0f1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 38:2c:4a:32:3e:b9  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 40  bytes 2000 (1.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 40  bytes 2000 (1.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp0s20u1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.229  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::2e0:4cff:fe9d:d82d  prefixlen 64  scopeid 0x20<link>
        ether 00:e0:4c:9d:d8:2d  txqueuelen 1000  (Ethernet)
        RX packets 158237  bytes 143296898 (136.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 157438  bytes 27402578 (26.1 MiB)
笔记本自带的无线玩卡找不到
使用lspci则可以看到笔记本自带的无线网卡如下
03:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5287 (rev 01)
04:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
这个就是啦03:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

我按照wiki来
https://wiki.archlinux.org/index.php/Ne … 5.E5.8F.A3

他说lspci -v

执行后找到我的bcm网卡的相关信息如下
03:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
    Subsystem: Lite-On Communications Inc Device 6605
    Flags: bus master, fast devsel, latency 0, IRQ 18
    Memory at f7900000 (64-bit, non-prefetchable) [size=32K]
    Capabilities: <access denied>
    Kernel driver in use: bcma-pci-bridge
    Kernel modules: bcma
然后他说接下来, 用 dmesg | grep module_name 来检查是否已经加载了驱动
我不知道bcma-pci-bridge bcma这两个哪一个是module_name ,于是我两个都尝试了如下
dmesg | grep bcma-pci-bridge 什么都没有
dmesg | grep bcma 如下
[    5.908662] bcma: bus0: Found chip with id 43142, rev 0x01 and package 0x08
[    5.908690] bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x28, class 0x0)
[    5.908712] bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x21, class 0x0)
[    5.908755] bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x16, class 0x0)
[    5.908807] bcma: bus0: Core 3 found: UNKNOWN (manuf 0x43B, id 0x368, rev 0x00, class 0x0)
[    5.922433] bcma: bus0: Bus registered

之后他说
加载设备模块
用 Google 查找芯片组需要的模块/驱动。常见的驱动模块有用于 Realtek 芯片组网卡的 8139too,或者用于 Sis 芯片组网卡的 sis900。知道要使用什么模块之后,尝试 手动加载它。如果你碰到了未找到模块的错误,可能驱动没有包括在 Arch 的内核中。你可以在 AUR 中搜索模块名称。
到这一步我就不明白了,我该如何知道我的网卡是什么芯片组呢?我有该如何查找芯片组需要的模块呢??

问题解决

需要这个包: broadcom-wl-dkms
archlinuxcn和AUR里面都有
装完重启即可,如果wl模块没有被自动加载的话,手动敲一下: modprobe wl
Archwiki参考页面: https://wiki.archlinux.org/index.php/Broadcom_wireless
原文地址:https://www.cnblogs.com/reddusty/p/5104036.html