我在 google、youtube 和其他人的问题上尝试了很多方法，但都没有用，我的 wifi 工作正常。上次重启后我的 wifi 停止工作，尝试重新启动网络管理器没有用，我的设置显示“未找到 Wi-Fi 适配器”，尝试lshw -class network显示以下内容：
root@user:/home/dnory0# lshw -class network
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: enp1s0
version: 07
serial: ec:f4:bb:7b:68:ed
size: 10Mbit/s
capacity: 100Mbit/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 autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:45 ioport:4000(size=256) memory:c0700000-c0700fff memory:c0400000-c0403fff
*-network DISABLED
description: Wireless interface
product: QCA9565 / AR9565 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 01
serial: 54:35:30:4e:2d:4f
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.15.0-38-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:19 memory:c0600000-c067ffff memory:c0680000-c068ffff
root@user:/home/dnory0# lspci -knn | grep Net -A3
02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: Dell QCA9565 / AR9565 Wireless Network Adapter [1028:020c]
Kernel driver in use: ath9k
Kernel modules: ath9k
03:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430] [1002:6660] (rev ff)
我读到一篇文章，说高通卡由于戴尔的支持而与 ubuntu 18.04 兼容，那么可能是什么问题呢？我使用 ubuntu 已经 2 个月了，这对我来说是新鲜事。