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装有 Ubuntu 12,04 的 HP Pavilion DV7 没有 wifi

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装有 Ubuntu 12,04 的 HP Pavilion DV7 没有 wifi

我最近更新到了 14.04，但发现了很多问题，于是决定恢复更改，重新安装 12.04。之前我的 wifi 没有任何问题，但现在似乎无法上网

跑步nmcli nm

RUNNING   STATE        WIFI-HARDWARE WIFI     WWAN-HARDWARE  WWAN
running   disconnected enabled       enabled  enabled        disabled

跑步vi /var/lib/NetworkManager/NetworkManager.state

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true

跑步iwconfig

eth0  no wireless extensions
lo    no wireless extensions

运行ifconfig只给出eth0所以lo没有wlan界面

跑步lspci -nnk | grep -iA2 net

07:00,0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06)
Subsystem: Hewlett-Packard Company Device [103c:165a]
Kernel driver in use: r8169
--
0d:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 10)
Subsystem: Hewlett-Packard Company Device [103c:145a]
Kernel modules: bcma

跑步sudo apt-get install bcmwl-kernel-source

sudo apt-get install bcmwl-kernel-source 
[sudo] password for timothy: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
bcmwl-kernel-source is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

答案1

驱动程序将由

sudo apt-get install bcmwl-kernel-source

答案2

以下答案起了作用：

sudo apt-get remove --purge bcmwl-kernel-source

如果尚未安装，请继续。

sudo apt-get install linux-firmware-nonfree
sudo modprobe -r b43 && sudo modprobe b43

来源

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