☰

WiFi 驱动程序突然消失 Ubuntu 18.04

tag-icon • tag-icon drivers wireless 18.04
WiFi 驱动程序突然消失 Ubuntu 18.04

安装 Ubuntu 18.04 后，我按照“软件和更新”界面的标准程序安装了 WiFi 驱动程序，一切运行正常。突然间，没有任何系统更新或任何类似的东西，我无法连接到 WiFi No WiFi adapter found（尽管我已经安装了它）。

WiFi 已正确打开，一切似乎都已就绪：例如

$ nmcli radio wifi
enabled

和

$ ifconfig
enp3s0f2: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 30:65:ec:07:51:a7  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

enx048705ea6058: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.224  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 2a02:8109:9200:23cc:306f:334c:5f32:6f5f  prefixlen 64  scopeid 0x0<global>
        inet6 2a02:8109:9200:23cc:c419:c684:822a:e929  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::83a1:2bfa:d8b2:7313  prefixlen 64  scopeid 0x20<link>
        ether 04:87:05:ea:60:58  txqueuelen 1000  (Ethernet)
        RX packets 4290  bytes 2741868 (2.7 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4149  bytes 564683 (564.6 KB)
        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 1000  (Local Loopback)
        RX packets 873  bytes 70852 (70.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 873  bytes 70852 (70.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

编辑：wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info正如下面的评论中所建议的，可以找到由此产生的其他信息这里

问题可能出在哪里？为什么突然之间，驱动程序似乎不再被识别了？

答案1

我发现重新安装驱动程序是有效的，原因如下：

sudo apt-get install --reinstall bcmwl-kernel-source

相关内容