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我的 Wifi 轉接器去哪了（Ubuntu 19.04）？

tag-icon • tag-icon networking drivers wireless 19.04
我的 Wifi 轉接器去哪了（Ubuntu 19.04）？

今天，我的筆記型電腦無線網路突然停止運作。我去檢查連接，沒有 wifi 圖示可供選擇。在設定中，它只顯示「未找到 Wifi 適配器」。該lspci命令返回：

codyp@codys-inspiron:~$ lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08) 00:13.0 Non-VGA unclassified device: Intel Corporation Sunrise Point-LP Integrated Sensor Hub (rev 21) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)

但是，我對 Ubuntu 缺乏經驗，我不知道我在看什麼。為什麼它會先消失？現在我透過乙太網路上網。該sudo lshw -C network命令輸出以下內容（我認為我還應該看到列出的無線網絡，但我沒有）：

  *-network                 
   description: Ethernet interface
   physical id: 2
   logical name: enx00000006776a
   serial: 00:00:00:06:77:6a
   size: 100Mbit/s
   capacity: 100Mbit/s
   capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=asix driverversion=22-Dec-2011 duplex=full firmware=ASIX AX88772B USB 2.0 Ethernet ip=192.168.86.200 link=yes multicast=yes port=MII speed=100Mbit/s

這是來自ifconfig：

        inet 192.168.86.200  netmask 255.255.255.0  broadcast 192.168.86.255
    inet6 fe80::409:f5be:cd2e:92e3  prefixlen 64  scopeid 0x20<link>
    ether 00:00:00:06:77:6a  txqueuelen 1000  (Ethernet)
    RX packets 6217  bytes 6523352 (6.5 MB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 4303  bytes 604422 (604.4 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 1447  bytes 129014 (129.0 KB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 1447  bytes 129014 (129.0 KB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

請告訴我這是可以修復的，我剛買了這台筆記型電腦。有沒有辦法直接重裝驅動？先感謝您！

答案1

如果我讓電腦進入睡眠狀態然後再醒來，我的 Wifi 轉接器似乎會隨機消失。但這每次都是肯定的解決方案：

  1. 進入BIOS設定
  2. 點選螢幕左側顯示的無線設定
  3. 點選恢復 BIOS 設定
  4. 重新啟動計算機

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