deshiyan@aspkv:~$ sudo lshw -C network
*-network DISABLED
description: Wireless interface
product: Realtek Semiconductor Co., Ltd.
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlo1
version: 00
serial: 5c:ba:ef:13:1a:2f
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw_pci driverversion=5.4.0-42-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:56 ioport:e000(size=256) memory:f7800000-f780ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eno1
version: 16
serial: bc:e9:2f:fd:aa:60
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 firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII
resources: irq:49 ioport:d000(size=256) memory:f7704000-f7704fff memory:f7700000-f7703fff
*-network
description: Ethernet interface
physical id: 2
logical name: enp4s0f3u3
serial: ee:22:5e:46:3e:f1
capabilities: ethernet physical
configuration: broadcast=yes driver=cdc_ether driverversion=22-Aug-2005 firmware=CDC Ethernet Device ip=192.168.225.23 link=yes multicast=yes
这是消息，第一个是禁用。
答案1
我换了不同的 wifi 驱动程序，但我认为这个问题是一样的。我按照以下链接中的说明解决了这个问题如何在 Ubuntu 18.04 上为 Realtek RTL8821CE 安装 Wi-Fi 驱动程序？
您还可以检查您的驱动程序是否有源代码，以便您自行安装。
干杯!