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Ubuntu20网络连接问题(针对broadcom网卡)

作者:互联网

安装Ubuntu 20.04网络连接问题(只针对broadcom网卡的解决方法)

安装了windows 和Linux双系统后发现windows 可以正常上网, ubuntu的网络连接出了问题,总是反复要求输入wifi密码, 网上各种都是修改dns的方法, 想来想去只能粗暴重装网卡驱动, 最后在国外的网站上找到了可以离线安装博通网卡驱动的详细方法链接
需要的材料:一台可以正常上网的电脑和一个u盘,双系统直接切换到windows系统下载好需要的文件就行
查看电脑的网卡型号的方法:在terminal输入lspci
根据网卡的型号找到对应的需要的包

PCI.ID              18.04 LTS                        20.04+
------------------------------------------------------------------------------------
14e4:0576           Special Case #1                   UNKNOWN      
14e4:165f           UNKNOWN                           UNKNOWN
14e4:1713           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4301           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4306           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4306 rev 02    firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4306 rev 03    firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4307           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4311           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4311 rev 01    firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4312           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4313           firmware-b43-installer            firmware-b43-installer / linux-firmware              
14e4:4315           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4315 rev 01    firmware-b43-installer            firmware-b43-installer / linux-firmware
14e4:4318           firmware-b43-installer            firmware-b43-installer / linux-firmware               
14e4:4318 rev 02    firmware-b43-installer            firmware-b43-installer / linux-firmware               
14e4:4319           firmware-b43-installer            firmware-b43-installer / linux-firmware              
14e4:4320 rev 02    firmware-b43-installer            firmware-b43-installer / linux-firmware              
14e4:4320 rev 03    firmware-b43-installer            firmware-b43-installer / linux-firmware           
14e4:4321           firmware-b43-installer            firmware-b43-installer / linux-firmware  
14e4:4324           firmware-b43-installer            firmware-b43-installer / linux-firmware       
14e4:4325           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4328           firmware-b43-installer            firmware-b43-installer / linux-firmware
14e4:4328 rev 03    bcmwl-kernel-source               bcmwl-kernel-source      
14e4:4329           bcmwl-kernel-source               bcmwl-kernel-source        
14e4:432a           bcmwl-kernel-source               bcmwl-kernel-source        
14e4:432b           bcmwl-kernel-source               bcmwl-kernel-source        
14e4:432c           bcmwl-kernel-source               bcmwl-kernel-source        
14e4:432d           bcmwl-kernel-source               bcmwl-kernel-source       
14e4:4331           firmware-b43-installer            firmware-b43-installer / linux-firmware          
14e4:4335           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4350           firmware-b43-installer            firmware-b43-installer / linux-firmware  
14e4:4353           Special Case #1                   UNKNOWN        
14e4:4353 rev 01    Special Case #1                   UNKNOWN                 
14e4:4357           Special Case #1                   UNKNOWN        
14e4:4358           bcmwl-kernel-source               bcmwl-kernel-source
14e4:4359           firmware-b43-installer            firmware-b43-installer / linux-firmware       
14e4:4360           firmware-b43-installer            firmware-b43-installer / linux-firmware    
14e4:4365           firmware-b43-installer            firmware-b43-installer / linux-firmware      
14e4:4365 rev 01    bcmwl-kernel-source               bcmwl-kernel-source      
14e4:43a0           bcmwl-kernel-source               bcmwl-kernel-source
14e4:43ae rev 02    UNKNOWN                           UNKNOWN     
14e4:43b1           bcmwl-kernel-source               bcmwl-kernel-source        
14e4:43b1 rev 03    bcmwl-kernel-source               bcmwl-kernel-source              
14e4:43c3 rev 04    UNKNOWN                           firmware-b43-installer / linux-firmware / Special Case #2                     
14e4:4727           bcmwl-kernel-source               bcmwl-kernel-source        
14e4:4727 rev 01    Special Case #1                   Special Case #1        
14e4:a962           firmware-b43-installer            firmware-b43-installer / linux-firmware 

比如我的网卡型号是14e4:43c3 rev 04, 需要firmware-b43-installer 和linux-firmware,这里有另外一个答案提供了离线安装的方法firmware-b43-installer offline

已经安装了bcmwl-kernel-source 要记得先卸载再安装firmware-b43-installer

另外因为我这个网卡型号比较特殊,所以还需要一些额外的操作。


14e4:43c3 rev 04 驱动离线安装:

 sudo dpkg -i b43-fwcutter_015-9_amd64.deb
 
 tar xfvj broadcom-wl-5.100.138.tar.bz2
 
 sudo b43-fwcutter -w /lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o
 
 sudo modprobe b43

 sudo cp brcmfmac4366c-pcie.bin /lib/firmware/brcm/brcmfmac4366c-pcie.bin

对于网络连接不稳定和wifi突然消失也可以用重装驱动的方法试一下,大概率都能解决问题


声明:本文转载自https://blog.csdn.net/yuanyOo0/article/details/113373095,原文出自https://askubuntu.com/questions/55868/installing-broadcom-wireless-drivers

标签:14e4,firmware,b43,broadcom,网卡,source,linux,installer,Ubuntu20
来源: https://blog.csdn.net/wsyear/article/details/115442291