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RTL8821CE 驱动程序在 Ubuntu 22.04 上不起作用

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RTL8821CE 驱动程序在 Ubuntu 22.04 上不起作用 
Kernel: 5.15.0-53-generic x86_64 bits: 64 Desktop: GNOME 42.5 Distro: Ubuntu 22.04.1 LTS (Jammy Jellyfish)

$ sudo lshw -C network
  *-network                 
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eno1
       version: 15
       serial: f6:6e:74:95:80:a5
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.15.0-53-generic duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=172.20.6.135 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:31 ioport:f000(size=256) memory:fe904000-fe904fff memory:fe900000-fe903fff
  *-network DISABLED
       description: Wireless interface
       product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: 00
       serial: 00:e0:4c:89:28:71
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtw_8821ce driverversion=5.15.0-53-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:67 ioport:e000(size=256) memory:fe800000-fe80ffff
  *-usb:1
       description: Ethernet interface
       product: USB 2.0 10/100M Ethernet Adaptor
       vendor: ICS Advent
       physical id: 4
       bus info: usb@1:4
       logical name: enx00e04c534458
       version: 1.01
       serial: 00:e0:4c:53:44:58
       size: 100Mbit/s
       capacity: 100Mbit/s
       capabilities: usb-1.10 ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=dm9601 driverversion=5.15.0-53-generic duplex=full firmware=Davicom DM96xx USB 10/100 Ether ip=192.168.10.69 link=yes maxpower=120mA multicast=yes port=MII speed=100Mbit/s
  *-network
       description: Wireless interface
       physical id: 4
       bus info: usb@1:3
       logical name: wlxd03745e8e1bb
       serial: d0:37:45:e8:e1:bb
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=r8188eu driverversion=5.15.0-53-generic ip=192.168.31.69 multicast=yes wireless=IEEE 802.11bgn

$ dkms status
# Nothing

$ rfkill list
0: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

$ cat /etc/modules/interfaces
cat: /etc/modules/interfaces: Not a directory

$ cat /etc/netplan/*.yaml
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

$ cat /etc/modprobe.d/dkms.conf
# modprobe information used for DKMS modules
#
# This is a stub file, should be edited when needed,
# used by default by DKMS.

$ ls -al /lib/modules/$(uname -r)/updates/dkms
ls: cannot access '/lib/modules/5.15.0-53-generic/updates/dkms': No such file or directory

$ lsmod | grep 8821
rtw88_8821ce           16384  0
rtw88_8821c            94208  1 rtw88_8821ce
rtw88_pci              32768  1 rtw88_8821ce
rtw88_core            258048  2 rtw88_pci,rtw88_8821c

$ iwconfig
lo        no wireless extensions.

eno1      no wireless extensions.

enx00e04c534458  no wireless extensions.

wlxd03745e8e1bb  IEEE 802.11bgn  ESSID:"MobinNet5-301-1"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:AD:D5:76:B5:5A   
          Bit Rate:72.2 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=75/100  Signal level=-48 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wlp3s0    IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
outline-tun0  no wireless extensions.

tun0      no wireless extensions.

我使用的是 21.10，有一天 Wi-Fi 停止工作了，升级到 22.04 后仍然无法工作（我希望升级可以解决问题）。

在此处输入图片描述 无线信息脚本结果

在此处输入图片描述

答案1

删除不必要的 DKMS 模块...

sudo dkms remove mt7612u/1.0 --all

sudo dkms remove rtl8188fu/1.0 --all

dkms status现在应该显示...

virtualbox/6.1.32, 5.13.0-40-generic, x86_64: installed
virtualbox/6.1.32, 5.15.0-27-generic, x86_64: installed

确认没有不必要的.ko 文件...

ls -al /lib/modules/$(uname -r)/updates/dkms

然后reboot。

选择下面的 DKMS 模块并重新启动...

在此处输入图片描述

如果由于某种原因您无法选择 DKMS 驱动程序...

sudo apt update

sudo apt install rtl8821ce-dkms

reboot

更新＃1：

启动至 Ubuntu Live USB 时 WiFi 可用。重新安装 Ubuntu。

答案2

同样的问题。将 Ubuntu 20.05 升级到 Ubuntu 22.04 后，wifi 停止工作。按照建议删除 rtl8821ce-dkms 并从黑名单中删除 rtw88_8821ce 对我有用。使用 HP Pavilion 15-cw1005la。

sudo dkms remove rtl8821ce/5.5.2.1

执行此命令后，rtw88_8821ce 会自动从 /etc/modprobe.d/dkms.conf 中删除。然后

sudo reboot

答案3

在我的计算机上，此驱动程序需要自签名，这意味着在 Linux 上安装时必须输入 MOK 密码，然后在 BIOS 中重新启动时输入该密码，以便内核接受它。我做到了，现在它可以正常工作了。

升级 BIOS 固件后出现此问题。

答案4

Ubuntu 22.4.3rtl8821ce-dkms不起作用。所以我删除了它。

1.

  • 检查
    sudo dkms status
    #rtl8821ce/5.5.2.1：已添加

  • sudo apt remove rtl8821ce-dkms
    从 DKMS 树中完全删除 #Deleting 模块 rtl8821ce-5.5.2.1。

2.注释掉以黑名单 如果它们存在的话。 nano /etc/modprobe.d/blacklist.conf

# wifi problem
# instead try install sudo apt-get install dkms build-essential rtl8821ce-dkms 
#blacklist 8821ce
#blacklist rtw88
#blacklist rtw88_8821ce
#blacklist rtw88_8821c
#blacklist rtw88_pci
#blacklist rtw88_core

3.打开软件更新程序=>设置=>additional drivers选项卡
检查选项不要使用该设备为了 瑞昱半导体有限公司 RTL8821CE 802.11ac PCIe 无线网络适配器

4.reboot

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