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Ubuntu 18.04 中未找到 wifi 适配器

tag-icon • tag-icon networking drivers 18.04 wireless
Ubuntu 18.04 中未找到 wifi 适配器

突然我的 wifi 不工作了，我几乎试过了所有方法，但都不起作用。以下是我已经尝试过的一些命令。

1)lspci | grep Network
没有显示结果，在 echo $? 之后显示 1 。

  1. 我尝试过这种方法-

    sudo apt install build-essential git dkms
git clone https://github.com/tomaspinho/rtl8821ce
cd rtl8821ce
sudo ./dkms-install.sh
sudo modprobe 8821ce
reboot

3）附加驱动程序中没有任何内容

4）lshw -C net *-网络

    description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: enp7s0
       version: 0c
       serial: 84:7b:eb:2a:2c:a9
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 ip=192.168.1.23 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       resources: irq:19 ioport:e000(size=256) memory:f7000000-f7000fff memory:f0000000-f0003fff
work

  1. sudo cat /etc/network/interfaces

    // ifup(8) 和 ifdown(8) 使用的接口 (5) 文件自动 lo

    iface lo inet 环回

6）lspci -knn | grep Net -A3; rfkill 列表

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

  1. lspci-nnk

     00:00.0 Host bridge [0600]: Intel Corporation Broadwell-U Host Bridge -OPI [8086:1604] (rev 09)
 Subsystem: Dell Broadwell-U Host Bridge -OPI [1028:06c1]
 Kernel driver in use: bdw_uncore
 00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 5500 [8086:1616] (rev 09)
 Subsystem: Dell HD Graphics 5500 [1028:06c1]
 Kernel driver in use: i915
 Kernel modules: i915
 00:03.0 Audio device [0403]: Intel Corporation Broadwell-U Audio Controller [8086:160c] (rev 09)
 Subsystem: Dell Broadwell-U Audio Controller [1028:06c1]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
 00:14.0 USB controller [0c03]: Intel Corporation Wildcat Point-LP USB xHCI Controller [8086:9cb1] (rev 03)
 Subsystem: Dell Wildcat Point-LP USB xHCI Controller [1028:06c1]
 Kernel driver in use: xhci_hcd
 00:16.0 Communication controller [0780]: Intel Corporation Wildcat Point-LP MEI Controller #1 [8086:9cba] (rev 03)
 Subsystem: Dell Wildcat Point-LP MEI Controller [1028:06c1]
 Kernel driver in use: mei_me
 Kernel modules: mei_me
 00:1b.0 Audio device [0403]: Intel Corporation Wildcat Point-LP High Definition Audio Controller [8086:9ca0] (rev 03)
 Subsystem: Dell Wildcat Point-LP High Definition Audio Controller [1028:06c1]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
 00:1c.0 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 [8086:9c90] (rev e3)
 Kernel driver in use: pcieport
 Kernel modules: shpchp
 00:1c.3 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 [8086:9c96] (rev e3)
 Kernel driver in use: pcieport
 Kernel modules: shpchp
 00:1c.4 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 [8086:9c98] (rev e3)
 Kernel driver in use: pcieport
 Kernel modules: shpchp
 00:1d.0 USB controller [0c03]: Intel Corporation Wildcat Point-LP USB EHCI Controller [8086:9ca6] (rev 03)
 Subsystem: Dell Wildcat Point-LP USB EHCI Controller [1028:06c1]
 Kernel driver in use: ehci-pci
 00:1f.0 ISA bridge [0601]: Intel Corporation Wildcat Point-LP LPC Controller [8086:9cc5] (rev 03)
 Subsystem: Dell Wildcat Point-LP LPC Controller [1028:06c1]
 Kernel driver in use: lpc_ich
 Kernel modules: lpc_ich
 00:1f.2 SATA controller [0106]: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] [8086:9c83] (rev 03)
 Subsystem: Dell Wildcat Point-LP SATA Controller [AHCI Mode] [1028:06c1]
 Kernel driver in use: ahci
 Kernel modules: ahci
 00:1f.3 SMBus [0c05]: Intel Corporation Wildcat Point-LP SMBus Controller [8086:9ca2] (rev 03)
 Subsystem: Dell Wildcat Point-LP SMBus Controller [1028:06c1]
 Kernel modules: i2c_i801
 07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
 Subsystem: Dell RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1028:06c1]
 Kernel driver in use: r8169
 Kernel modules: r8169

有谁能够帮助我？

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