运行 Ubuntu 22.04，一切正常，直到从 5.15.0-60 自动升级到 5.19.0-32。首先分析：
+ nmcli device
DEVICE TYPE STATE CONNECTION
34:1C:F0:3F:47:21 bt disconnected --
54:67:06:D7:5B:A6 bt disconnected --
lo loopback unmanaged --
+ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
+ dkms status
rtl8821ce/5.5.2.1, 5.15.0-60-generic, x86_64: installed
+ sudo lshw -C network
*-network UNCLAIMED
description: Network controller
product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: …