我正在运行 Ubuntu 14.04，并在上周运行了系统更新。从那时起，我的 Wifi 适配器就无法正常工作了。我阅读了与该主题相关的其他几个帖子，但决定最好发布我的笔记本电脑无线脚本的结果。请帮忙。另外，将笔记本电脑连接到有线连接对我来说很麻烦。
脚本中的信息如下：
########## wireless info START ##########
Report from: 28 Dec 2016 10:11 EST -0500
Booted last: 12 Dec 2016 11:13 EST -0500
Script from: 08 Jul 2016 02:16 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.5 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 4.4.0-51-generic #72~14.04.1-Ubuntu SMP Thu Nov 24 19:22:30 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu (from ~/.dmrc)
##### lspci #############################
06:00.0 Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
Subsystem: Dell Device [1028:0019]
07:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5249 PCI Express Card Reader [10ec:5249] (rev 01)
##### lsusb #############################
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 0a5c:216f Broadcom Corp. BCM20702A0 Bluetooth
Bus 003 Device 002: ID 04f3:21f9 Elan Microelectronics Corp.
Bus 003 Device 006: ID 03f0:134a Hewlett-Packard Optical Mouse
Bus 003 Device 005: ID 0e8d:1887 MediaTek Inc.
Bus 003 Device 004: ID 0bda:573c Realtek Semiconductor Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
2: nfc0: NFC
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
##### lsmod #############################
dell_wmi 16384 0
sparse_keymap 16384 1 dell_wmi
mxm_wmi 16384 0
dell_laptop 20480 0
dcdbas 16384 1 dell_laptop
wmi 20480 2 dell_wmi,mxm_wmi
video 40960 3 i915,dell_wmi,dell_laptop
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
virbr0 Link encap:Ethernet HWaddr <MAC 'virbr0' [IF1]>
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17040 errors:0 dropped:0 overruns:0 frame:0
TX packets:16397 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2047348 (2.0 MB) TX bytes:1618559 (1.6 MB)
vnet0 Link encap:Ethernet HWaddr <MAC 'virbr0' [IF1]>
inet6 addr: fe80::<IP6 'virbr0' [IF1]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17040 errors:0 dropped:0 overruns:0 frame:0
TX packets:374115 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2285908 (2.2 MB) TX bytes:20233850 (20.2 MB)
##### iwconfig ##########################
vnet0 no wireless extensions.
lo no wireless extensions.
virbr0 no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
##### resolv.conf #######################
##### network managers ##################
Installed:
NetworkManager
Running:
root 1565 1 0 Dec12 ? 00:00:07 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: disconnected
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
no-auto-default=<MAC address>,9C:EB:E8:25:26:13,9C:EB:E8:25:26:24,
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/ANNEX]] (600 root)
[connection] id=ANNEX | type=802-11-wireless
[802-11-wireless] ssid=ANNEX | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/C24G4]] (600 root)
[connection] id=C24G4 | type=802-11-wireless
[802-11-wireless] ssid=C24G4 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/LANT Mifi 4]] (600 root)
[connection] id=LANT Mifi 4 | type=802-11-wireless
[802-11-wireless] ssid=LANT Mifi 4 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/gogoinflight]] (600 root)
[connection] id=gogoinflight | type=802-11-wireless
[802-11-wireless] ssid=gogoinflight | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/LANT Mifi 6]] (600 root)
[connection] id=LANT Mifi 6 | type=802-11-wireless
[802-11-wireless] ssid=LANT Mifi 6 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/NAVFAC-V5]] (600 root)
[connection] id=NAVFAC-V5 | type=802-11-wireless
[802-11-wireless] ssid=NAVFAC-V5 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/hhonors]] (600 root)
[connection] id=hhonors | type=802-11-wireless
[802-11-wireless] ssid=hhonors | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/LANT MIFI 6]] (600 root)
[connection] id=LANT MIFI 6 | type=802-11-wireless
[802-11-wireless] ssid=LANT MIFI 6 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/LANT Mifi 1]] (600 root)
[connection] id=LANT Mifi 1 | type=802-11-wireless
[802-11-wireless] ssid=LANT Mifi 1 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/insert_awesome_SSID_here]] (600 root)
[connection] id=insert_awesome_SSID_here | type=802-11-wireless
[802-11-wireless] ssid=insert_awesome_SSID_here | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/ANNEX2]] (600 root)
[connection] id=ANNEX2 | type=802-11-wireless
[802-11-wireless] ssid=ANNEX2 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/DM3 Hotspot]] (600 root)
[connection] id=DM3 Hotspot | type=802-11-wireless
[802-11-wireless] ssid=DM3 Hotspot | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Chaplain Office]] (600 root)
[connection] id=Chaplain Office | type=802-11-wireless
[802-11-wireless] ssid=Chaplain Office | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Atlantic CIO 1]] (600 root)
[connection] id=Atlantic CIO 1 | type=802-11-wireless
[802-11-wireless] ssid=Atlantic CIO | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Fairfield_GUEST]] (600 root)
[connection] id=Fairfield_GUEST | type=802-11-wireless
[802-11-wireless] ssid=Fairfield_GUEST | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/ATT CERT LANT 1]] (600 root)
[connection] id=ATT CERT LANT 1 | type=802-11-wireless
[802-11-wireless] ssid=ATT CERT LANT 1 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Atlantic CIO]] (600 root)
[connection] id=Atlantic CIO | type=802-11-wireless
[802-11-wireless] ssid=Atlantic CIO | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/guestwifi]] (600 root)
[connection] id=guestwifi | type=802-11-wireless
[802-11-wireless] ssid=guestwifi | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
##### iw reg get ########################
Region: America/New_York (based on set time zone)
country 00:
(2402 - 2472 @ 40), (6, 20)
(2457 - 2482 @ 40), (6, 20), PASSIVE-SCAN
(2474 - 2494 @ 20), (6, 20), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 160), (6, 20), PASSIVE-SCAN
(5250 - 5330 @ 160), (6, 20), DFS, PASSIVE-SCAN
(5490 - 5730 @ 160), (6, 20), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (6, 20), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0)
##### iwlist channels ###################
vnet0 no frequency information.
lo no frequency information.
virbr0 no frequency information.
##### iwlist scan #######################
vnet0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
virbr0 Interface doesn't support scanning.
##### module infos ######################
##### module parameters #################
##### /etc/modules ######################
lp
rtc
##### 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
[/etc/modprobe.d/netcf.conf]
alias bond0 bonding
[/etc/modprobe.d/qemu-system-x86.conf]
options kvm_intel nested=1
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# USB device 0x:0x (r8152)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x14e4:0x43b1 (wl)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
# USB device 0x:0x (r8152)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
# USB device 0x:0x (r8152)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"
##### dmesg #############################
[712130.479786] bluetooth hci0: Direct firmware load for brcm/BCM20702A1-0a5c-216f.hcd failed with error -2
[712130.479789] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0a5c-216f.hcd not found
########## wireless info END ############