Ubuntu 18.04未找到WiFi适配器
刚刚安装了Ubuntu 18.04，但是我的WiFi适配器Qualcomm Atheros QCA9565 / AR9565无线网络适配器无法正常工作，甚至出现在系统设置中。
输出lspci -knn | grep Net -A3：
> rahul@rahul-Inspiron-3542:~$ lspci -knn | grep Net -A3 06:00.0 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 07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07) 输出lspci -knn | grep Net -A2
rahul@rahul-Inspiron-3542:~$ lspci -knn | grep Net -A2 06:00.0 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
输出sudo rfkill列表
rahul@rahul-Inspiron-3542:~$ sudo rfkill list [sudo] password for rahul: 0: dell-rbtn: Wireless LAN Soft blocked: yes Hard blocked: yes 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: yes Hard blocked: no
输出sudo lshw -C network
rahul@rahul-Inspiron-3542:~$ sudo lshw -C network *-network DISABLED description: Wireless interface product: QCA9565 / AR9565 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:06:00.0 logical name: wlp6s0 version: 01 serial: 4c:bb:58:30:aa:07 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=4.17.11-041711-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11 resources: irq:18 memory:f7900000-f797ffff memory:f7980000-f798ffff *-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@0000:07:00.0 logical name: enp7s0 version: 07 serial: 74:e6:e2:14:2a:c8 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:19 ioport:e000(size=256) memory:f7800000-f7800fff memory:f2100000-f2103fff *-network description: Ethernet interface physical id: 2 logical name: enp0s20u1 serial: 7a:14:5b:44:b4:96 capabilities: ethernet physical configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.109 link=yes multicast=yes
输出dmesg | grep ath9k
rahul@rahul-Inspiron-3542:~$ dmesg | grep ath9k [ 23.712505] ath9k 0000:06:00.0 wlp6s0: renamed from wlan0
输出sudo iw dev
rahul@rahul-Inspiron-3542:~$ sudo iw dev [sudo] password for rahul: phy#0 Interface wlp6s0 ifindex 3 wdev 0x1 addr 4c:bb:58:30:aa:07 type managed txpower 0.00 dBm
dmesg的输出 dmesg的输出
我已经尝试了很多解决方案，但对我来说没有任何作用，我正在寻找这么多天的答案。 请有人解决我的问题。 如果有人想要任何其他信息，请告诉我。
任何帮助将不胜感激。
各位男士我试了一个月然后能够找到问题的解决方案“找不到WiFi适配器”，问题在ubuntu的所有版本都是一样的，因为我尝试了Ubuntu 16.04然后是Ubuntu 14.04，但我最终能够找到解决方案。我几乎尝试了所有可用的解决方案。
在我的情况下，rfkill列表的输出
0: dell-rbtn: Wireless LAN Soft blocked: yes Hard blocked: yes
所以要解决问题我需要将dell-rbtn列入黑名单（这是硬件问题）
对我来说，我做了
echo "blacklist dell-rbtn" | sudo tee /etc/modprobe.d/dell-rbtn.conf
并重新启动笔记本电脑后，现在我可以使用WIFI。
我希望这会对某人有所帮助，因为我也试了几个月来解决这个问题。 谢谢
最后一件事我的笔记本电脑配置戴尔Inspiron 3542和网络控制器[0280]：Qualcomm Atheros QCA9565 / AR9565无线网络适配器