我刚刚在我的 Acer Aspire 4752G 上安装了 Ubuntu 16.04，但我的 Wi-Fi 无法正常工作。
我的 wifi 控制器是：
giovanni@giovanni-Aspire-4752:~$ lspci | grep Network
03:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
基于此（https://wireless.wiki.kernel.org/en/users/drivers/ath9k）我使用 modprobe ath9k 启用了 ath9k 模块
这使得 phy1 wifi 设备显示出来：
giovanni@giovanni-Aspire-4752:~$ rfkill list
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
4: phy1: Wireless LAN
Soft blocked: no
Hard blocked: yes
但似乎被硬性阻止了。我在笔记本电脑上找不到任何硬件开关，BIOS 中也没有启用/禁用它的选项。
giovanni@giovanni-Aspire-4752:~$ sudo lshw -C network
*-network DISABLED
description: Wireless interface
product: AR9287 Wireless Network Adapter (PCI-Express)
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: 7c:e9:d3:08:70:55
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.13.0-26-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:f3a00000-f3a0ffff
*-network
description: Ethernet interface
product: NetLink BCM57785 Gigabit Ethernet PCIe
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0f0
version: 10
serial: 20:6a:8a:6a:cd:1d
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=full firmware=sb ip=192.168.0.17 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:19 memory:f3800000-f380ffff memory:f3810000-f381ffff memory:cfa00000-cfa007ff
我在这里先向您的帮助表示感谢。