切换到 NVIDIA 显卡驱动后无 Wi-Fi 设置或连接

Question

乌班图20.04

我已经尝试了其他类似问题的几个答案。

从Nouveau更改为NVIDIA驱动程序后，我现在没有任何WiFI设置（任务栏中没有图标，网络设置中只有VPN设置，没有连接）。

切换回 Nouveau 并不能解决这个问题。

我的 WiFi 卡是 Intel 6 AX200

输出lshw -C Network（WiFI 部分）：

*-network UNCLAIMED
       description: Network controller
       product: Wi-Fi 6 AX200
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 1a
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: memory:fc700000-fc703fff

输出sudo modprobe iwlwifi：

     modprobe: ERROR: ../libkmod/libkmod-module.c:838 kmod_module_insert_module() could not find module by name='iwlwifi'
modprobe: ERROR: could not insert 'iwlwifi': Unknown symbol in module, or unknown parameter (see dmesg)

似乎驱动程序没有被拾取（？），尽管我自己手动下载了它以尝试修复此问题并将其移至/lib/firmware并重新启动。

有任何想法吗？

输出dpkg -l | egrep -v '^ii|rc'：

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
+++-==========================================-=====================================-============-======================================================================================================

输出dpkg -l | grep linux：

ii  binutils-x86-64-linux-gnu                  2.34-6ubuntu1                         amd64        GNU binary utilities, for x86-64-linux-gnu target
ii  console-setup-linux                        1.194ubuntu3                          all          Linux specific part of console-setup
ii  libselinux1:amd64                          3.0-1build2                           amd64        SELinux runtime shared libraries
ii  libv4l-0:amd64                             1.18.0-2build1                        amd64        Collection of video4linux support libraries
ii  libv4lconvert0:amd64                       1.18.0-2build1                        amd64        Video4linux frame format conversion library
ii  linux-base                                 4.5ubuntu3.1                          all          Linux image base package
ii  linux-firmware                             1.187.2                               all          Firmware for Linux kernel drivers
ii  linux-generic-hwe-20.04                    5.4.0.51.54                           amd64        Complete Generic Linux kernel and headers
ii  linux-headers-5.4.0-42                     5.4.0-42.46                           all          Header files related to Linux kernel version 5.4.0
ii  linux-headers-5.4.0-42-generic             5.4.0-42.46                           amd64        Linux kernel headers for version 5.4.0 on 64 bit x86 SMP
ii  linux-headers-5.4.0-51                     5.4.0-51.56                           all          Header files related to Linux kernel version 5.4.0
ii  linux-headers-5.4.0-51-generic             5.4.0-51.56                           amd64        Linux kernel headers for version 5.4.0 on 64 bit x86 SMP
ii  linux-headers-generic-hwe-20.04            5.4.0.51.54                           amd64        Generic Linux kernel headers
ii  linux-image-5.4.0-42-generic               5.4.0-42.46                           amd64        Signed kernel image generic
ii  linux-image-5.4.0-51-generic               5.4.0-51.56                           amd64        Signed kernel image generic
ii  linux-image-5.4.0-52-generic               5.4.0-52.57                           amd64        Signed kernel image generic
ii  linux-image-generic-hwe-20.04              5.4.0.51.54                           amd64        Generic Linux kernel image
ii  linux-libc-dev:amd64                       5.4.0-51.56                           amd64        Linux Kernel Headers for development
ii  linux-modules-5.4.0-42-generic             5.4.0-42.46                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-5.4.0-51-generic             5.4.0-51.56                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-5.4.0-52-generic             5.4.0-52.57                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-extra-5.4.0-42-generic       5.4.0-42.46                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-extra-5.4.0-51-generic       5.4.0-51.56                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-nvidia-450-5.4.0-52-generic  5.4.0-52.57                           amd64        Linux kernel nvidia modules for version 5.4.0-52
ii  linux-modules-nvidia-450-generic-hwe-20.04 5.4.0-52.57                           amd64        Extra drivers for nvidia-450 for generic-hwe-20.04
ii  linux-sound-base                           1.0.25+dfsg-0ubuntu5                  all          base package for ALSA and OSS sound systems
ii  pptp-linux                                 1.10.0-1build1                        amd64        Point-to-Point Tunneling Protocol (PPTP) Client
ii  python3-selinux                            3.0-1build2                           amd64        Python3 bindings to SELinux shared libraries
ii  syslinux                                   3:6.04~git20190206.bf6db5b4+dfsg1-2   amd64        collection of bootloaders (DOS FAT and NTFS bootloader)
ii  syslinux-common                            3:6.04~git20190206.bf6db5b4+dfsg1-2   all          collection of bootloaders (common)
ii  syslinux-legacy                            2:3.63+dfsg-2ubuntu9                  amd64        Bootloader for Linux/i386 using MS-DOS floppies
ii  util-linux                                 2.34-0.1ubuntu9                       amd64        miscellaneous system utilities

Answer 1

使用安装推荐的 nvidia 驱动程序后，我还遇到了确切缺少 iwlwifi 的问题sudo ubuntu-drivers autoinstall。Ubuntu 使用的是我所在国家/地区的 ppa 镜像，该镜像可能已经过时了。我解决了这个问题

1. 使用 GRUB 菜单重新启动到旧内核版本（第二个选项）
2. 将 PPA 切换到全局镜像并使用相同的 autoinstall 命令重新安装 nvidia 驱动程序。
3. 运行sudo apt update && sudo apt upgrade -y以再次更新到最新内核
4. 重启。此时，指向最新内核的 GRUB 条目应该可以正常工作，没有任何问题。

Answer 2

您需要linux-modules-extra-5.4.0-52通过安装

sudo apt install linux-modules-extra-5.4.0-52-generic

奇怪的是它没有在内核升级时自动安装。可能您中断了升级。