我最近购买了一台 HP Notebook 17-y020ca，并安装了 XUbuntu 16.04。这款笔记本配有 Broadcom Corporation BCM43142 无线网卡。
最初未检测到此无线网卡（但以太网卡工作正常），我按照以下说明进行操作：
是否可以在 Ubuntu 16.04 中使用 Broadcom BCM43142 wifi？
现在该卡似乎已被普遍检测到，并且“启用 WiFi”在我的 XFCE 中的网络菜单中显示为活动（非灰色）选项。
当我点击“启用 WiFi”时，此菜单通常会更改状态，通过“启用 WiFi”旁边的复选标记指示它已启用。但是，当发生这种情况时，菜单中会出现以下两种情况之一。要么它说：
“Wi-Fi 已禁用”或“Wi-Fi 尚未准备好”
我运行了 wireless-info.bash 脚本并包含以下内容。
如果有人能提出建议，我将不胜感激。非常感谢您的考虑！
诚挚的，纳撒尼尔·奥斯古德
########## wireless info START ##########
Report from: 27 Jun 2016 11:59 CST -0600
Booted last: 27 Jun 2016 00:00 CST -0600
Script from: 26 May 2016 21:56 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Xubuntu (from ~/.dmrc)
##### lspci #############################
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
DeviceName: RTL8166 Lan Connection
Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:8221]
02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
DeviceName: WLAN Broadcom 43142 bgn 1x1
Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]
##### lsusb #############################
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 05c8:038f Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 002 Device 002: ID 0a5c:216d Broadcom Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
3: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
##### lsmod #############################
acer_wmi 20480 0
hp_wmi 16384 0
sparse_keymap 16384 2 acer_wmi,hp_wmi
wl 6365184 0
cfg80211 565248 1 wl
wmi 20480 2 acer_wmi,hp_wmi
video 40960 1 acer_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eno1 Link encap:Ethernet HWaddr <MAC 'eno1' [IF1]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:1554 errors:0 dropped:0 overruns:0 frame:0
TX packets:1545 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:634941 (634.9 KB) TX bytes:364653 (364.6 KB)
wlo1 Link encap:Ethernet HWaddr <MAC 'wlo1' [IF2]>
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:228
##### iwconfig ##########################
eno1 no wireless extensions.
lo no wireless extensions.
wlo1 IEEE 802.11abg ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=200 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 793 1 0 11:49 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: eno1
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
GENERAL.DRIVER: r8169
GENERAL.DRIVER-VERSION: 2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'eno1' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 40 (Carrier/link changed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:02.2/0000:01:00.0/net/eno1
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: 100 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
GENERAL.DEVICE: wlo1
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Broadcom Corporation
GENERAL.PRODUCT: BCM43142 802.11b/g/n
GENERAL.DRIVER: wl
GENERAL.DRIVER-VERSION: 6.30.223.248 (r487574)
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'wlo1' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:02.3/0000:02:00.0/net/wlo1
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: no
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
##### iw reg get ########################
Region: America/Regina (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
eno1 no frequency information.
lo no frequency information.
wlo1 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 14 : 2.484 GHz
Channel 36 : 5.18 GHz
Channel 38 : 5.19 GHz
Channel 40 : 5.2 GHz
Channel 42 : 5.21 GHz
Channel 44 : 5.22 GHz
Channel 46 : 5.23 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
##### iwlist scan #######################
wlo1 Interface doesn't support scanning : Network is down
eno1 Interface doesn't support scanning.
lo Interface doesn't support scanning.
##### module infos ######################
[wl]
filename: /lib/modules/4.4.0-21-generic/updates/dkms/wl.ko
license: MIXED/Proprietary
srcversion: 4DDC5FCDB1E30F7DFDCA530
depends: cfg80211
vermagic: 4.4.0-21-generic SMP mod_unload modversions
parm: passivemode:int
parm: wl_txq_thresh:int
parm: oneonly:int
parm: piomode:int
parm: instance_base:int
parm: nompc:int
parm: intf_name:string
[cfg80211]
filename: /lib/modules/4.4.0-21-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 00D8DA6D3B739DDD31FFF50
depends:
intree: Y
vermagic: 4.4.0-21-generic SMP mod_unload modversions
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 12.989617] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2
[ 12.989627] Bluetooth: hci0: BCM: Patch brcm/BCM.hcd not found
[ 13.010399] wl: module license 'MIXED/Proprietary' taints kernel.
[ 13.015143] wl: module verification failed: signature and/or required key missing - tainting kernel
[ 13.372937] wlan0: Broadcom BCM4365 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574)
[ 14.585653] wl 0000:02:00.0 wlo1: renamed from wlan0
[ 15.477355] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
[ 15.483048] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
[ 15.665397] r8169 0000:01:00.0 eno1: link down (repeated 2 times)
[ 15.665478] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
[ 17.272949] r8169 0000:01:00.0 eno1: link up
[ 17.273002] IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready
[ 134.246145] r8169 0000:01:00.0 eno1: link down
[ 210.833497] r8169 0000:01:00.0 eno1: link up
[ 536.696508] r8169 0000:01:00.0 eno1: link down
########## wireless info END ############
答案1
可以通过终端命令修复此问题
sudo tee /etc/modprobe.d/blacklist_acer.conf <<< "blacklist acer_wmi"
重启后 Wi-Fi 应该可以正常工作。