我有 Ubuntu 16.04。我看不到任何 wifi 启用选项。我在软件和更新中选择了Broadcom驱动程序，并且在BIOS中启用了Wi-Fi开关。
我浏览了帮助页面并运行以下命令：
$ sudo lshw -C network
*-network
description: Network controller
product: BCM4311 802.11b/g WLAN
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:0b:00.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=b43-pci-bridge latency=0
resources: irq:16 memory:efdfc000-efdfffff
*-network
description: Ethernet interface
product: BCM4401-B0 100Base-TX
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:1d:09:b6:10:83
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: …