我有一台带有 rtl8821ce wifi 适配器的联想 320 笔记本电脑。我使用的是 Ubuntu 19.04，并且适配器在遵循 这些步骤后工作。
我升级到 19.10，wifi 现在不工作了。
的输出lshw -C network如下
*-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: enp2s0
version: 10
serial: 8c:16:45:45:5c:35
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-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII
resources: irq:16 ioport:4000(size=256) memory:a2104000-a2104fff memory:a2100000-a2103fff
*-network UNCLAIMED
description: Network controller
product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: ioport:3000(size=256) memory:a2000000-a200ffff
*-network
description: Ethernet interface
physical id: 3
logical name: bnep0
serial: b0:fc:36:38:c0:d0
capabilities: ethernet physical
configuration: broadcast=yes ip=192.168.44.52 multicast=yes
这篇文章和我有同样的问题 - 包括从其他驱动程序安装驱动程序 - 但遵循接受的答案对我不起作用。
还有什么我可以做的吗？
$ lspci -nnk | grep 0280 -A3
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
Subsystem: Lenovo RTL8821CE 802.11ac PCIe Wireless Network Adapter [17aa:c024]
Kernel modules: wl, 8821ce, rtl8821ce
$ sudo dkms status
bcmwl, 6.30.223.271+bdcom, 5.3.0-22-generic, x86_64: installed
rtl8821ce, 5.2.5.2.1.30816.20190425, 5.3.0-22-generic, x86_64: installed
$ sudo modprobe rtl8821ce && dmesg | grep rtl
modprobe: ERROR: could not insert 'rtl8821ce': Device or resource busy