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This article focuses on "how to solve the problem that the wireless network cannot be linked in the archlinux+kde plasma environment". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to solve the problem that the wireless network cannot be linked in the archlinux+kde plasma environment.

Background introduction

Hp440,i54200U 64bit.

Archlinux 20170101.iso

Kde5 plasma

Problem description

Installation of NetworkManager (service responsible for providing network functions, referred to as nm) and network-manager-applet,network-manager-applet are suitable for scenarios using plasma desktops. It is a tray program that manages the computer's network through a graphical interface, hereinafter referred to as nm-applet. After starting nm correctly, clicking on the nm-applet icon only shows the wired link, not the list of available wireless networks.

Even the linkernetworks2 that you manually added cannot be activated.

Configuration of Wireless Network on archlinux

Asking questions on kde-cn (https://userbase.kde.org/IRC_Channels/zh-cn)) doesn't solve your problem.

Check the pci device and find no problem

$lspci-k09virtual 00.0 Network controller: Broadcom Limited BCM43228 802.11a/b/g/n Subsystem: Broadcom Limited Device 05e2 Kernel driver in use: bcma-pci-bridge Kernel modules: bcma

Check the network card device and find that there is no wireless network card information.

$ip link show1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1 link/loopback 0012 qdisc fq_codel state UP mode DEFAULT group default qlen 0000 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 5c:b9:01:f6:3b:18 brd ff:ff:ff:ff:ff:ff

The above two steps found that there is no wireless network card device information. There are two guesses:

The wireless network card device is not turned on, turn it on manually (on the notebook)

The wireless network card is broken.

I tried to open the network cable network card on hp and found it useless. * * I'm a little panicked. Is the network card broken? The notebook that the baby just applied for broke the wireless network card. I am not happy and want to cry! **

Installing archlinux is like building blocks, a lot of things need to be adapted by myself, and then I found that archlinuxcn-bbs couldn't find the wireless card, and referring to the other party's solution, I felt that I didn't install the right firmware (firmware).

Finally, it locates its own problem: the firmware of the wireless network card in the kernel is inconsistent with the hardware of the wireless network card. After finding the problem, refer to the link in wiki to install the firmware correctly and restart the notebook to resolve the problem.

At this point, I believe you have a deeper understanding of "how to solve the problem that the wireless network cannot be linked in the archlinux+kde plasma environment". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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