wifi 停止工作 RTL8821CE ubuntu 20.04

wifi 停止工作 RTL8821CE ubuntu 20.04

重启后我的 wifi 卡停止工作。

包rtl8821ce-dkms安装了,为什么wifi没了?

$ dpkg -l  | grep rtl88
ii  rtl8821ce-dkms                                5.5.2.1-0ubuntu4~20.04.2              all          DKMS source for the Realtek 8821C PCIe WiFi driver
$ sudo modprobe -a rtl8821ae 
$ sudo rfkill list all
0: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no
$ sudo lshw -C network
  *-network UNGEFORDERT     
       Beschreibung: Network controller
       Produkt: RTL8821CE 802.11ac PCIe Wireless Network Adapter
       Hersteller: Realtek Semiconductor Co., Ltd.
       Physische ID: 0
       Bus-Informationen: pci@0000:02:00.0
       Version: 00
       Breite: 64 bits
       Takt: 33MHz
       Fähigkeiten: pm msi pciexpress cap_list
       Konfiguration: latency=0

dkms status
rtl8821ce, 5.5.2.1: added
virtualbox, 6.1.10, 5.4.0-59-generic, x86_64: installed
virtualbox, 6.1.10, 5.4.0-60-generic, x86_64: installed

uname -r 
5.8.0-36-generic

答案1

我想我找到解决办法了。

问题是缺少 5.8 的内核头。软件包linux-image-generic-hwe-20.04已安装,但linux-generic-hwe-20.04缺失。没有注意到,因为之前没有安装内核 5.8...

之后sudo apt remove rtl8821ce-dkms && sudo apt install rtl8821ce-dkms恢复了 wifi。(谢谢你的帮助!Pilot6)

dkms status
rtl8821ce, 5.5.2.1, 5.4.0-60-generic, x86_64: installed
rtl8821ce, 5.5.2.1, 5.8.0-36-generic, x86_64: installed
virtualbox, 6.1.10: added

Virtualbox 内核模块仍然有问题,但我认为这是个普遍问题。尝试过彻底清除并重新安装,但没有成功。:/ https://www.reddit.com/r/voidlinux/comments/ihnh51/linux58_building_dkms_module_virtualboxose6110/

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