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Ubuntu 22.04 中 Wifi 和蓝牙突然无法使用

tag-icon • tag-icon networking drivers bluetooth iwlwifi
Ubuntu 22.04 中 Wifi 和蓝牙突然无法使用

大约一周前，我的电脑突然与 Wi-Fi 断开连接。现在我在设置中找不到 Wi-Fi 菜单，蓝牙也不起作用，设置中的切换按钮不起作用。我尝试了不同论坛上的各种解决方案，但都不起作用。以下是可能有用的输出列表。

  1. dmesg | grep -i bluetooth

    [    3.810679] Bluetooth: Core ver 2.22  
[    3.810727] NET: Registered PF_BLUETOOTH protocol family  
[    3.810731] Bluetooth: HCI device and connection manager initialized  
[    3.810916] Bluetooth: HCI socket layer initialized  
[    3.810921] Bluetooth: L2CAP socket layer initialized  
[    3.810930] Bluetooth: SCO socket layer initialized  
[    3.946449] Bluetooth: hci0: Bootloader revision 0.0 build 42 week 52 2015  
[    3.948664] Bluetooth: hci0: Device revision is 0  
[    3.948670] Bluetooth: hci0: Secure boot is disabled  
[    3.948672] Bluetooth: hci0: OTP lock is disabled  
[    3.948675] Bluetooth: hci0: API lock is disabled  
[    3.948677] Bluetooth: hci0: Debug lock is disabled  
[    3.948679] Bluetooth: hci0: Minimum firmware build 0 week 0 2000  
[    3.948683] Bluetooth: hci0: No device address configured  
[    3.949230] Bluetooth: hci0: Failed to load Intel firmware file intel/ibt-17-0-0.sfi (-2)  
[    3.951350] Bluetooth: hci0: Opcode 0x c03 failed: -56  
[    3.954741] Bluetooth: hci0: Failed to read MSFT supported features (-56)  
[    4.296585] Bluetooth: BNEP (Ethernet Emulation) ver 1.3  
[    4.296593] Bluetooth: BNEP filters: protocol multicast
[    4.296600] Bluetooth: BNEP socket layer initialized

    我尝试在这里寻找丢失的固件文件：https://anduin.linuxfromscratch.org/sources/linux-firmware/intel/但那里也缺少了它。

  2. dmesg | grep -i iwl

    [    2.504113] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[    2.519800] iwlwifi 0000:00:14.3: Can find a correct rfid for crf id 0x816
[    2.519863] iwlwifi: probe of 0000:00:14.3 failed with error -22

  3. lshw -class network

      *-network UNCLAIMED       
       description: Network controller
       product: Cannon Point-LP CNVi [Wireless-AC]
       vendor: Intel Corporation
       physical id: 14.3
       bus info: pci@0000:00:14.3
       version: 30
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: memory:b431c000-b431ffff

  4. ifconfig -a

    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 13227  bytes 1142334 (1.1 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13227  bytes 1142334 (1.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ifconfig据我了解，仅显示环回接口和状态的事实UNCLAIMED network表明我的系统无法识别我的网卡。

我尝试更新所有固件文件/usr/lib/firmware/intel并安装以下包按照建议发现这里，但没有帮助。

我的 Windows 是双启动的，因此我尝试从那里解决问题，但我的网卡在设备管理器中丢失了，蓝牙也是如此：我甚至尝试拆开我的电脑，认为这可能是硬件问题（例如某些电线断开连接）但一切似乎都很好。

我已尽力，但我真的不知道发生了什么，如能提供任何意见我将非常感激。

答案1

如果它也从 Windows 中消失，则可能是硬件问题。您可能会幸运地检查 BIOS 是否存在配置错误，或者重新刷新它。

有时这些 CNVi 模块可以更换，它们安装在 m2 插槽中，我看到它们的售价不到 20 美元。

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