几乎试过了网上的所有方法。还通过 bios 关闭了安全启动。
sudo modprobe wl返回modprobe: FATAL: Module wl not found in directory /lib/modules/4.4.8-040408-genericdkms status返回bbswitch, 0.8, 4.4.0-34-generic, x86_64: installed bbswitch, 0.8, 4.4.0-38-generic, x86_64: installed bbswitch, 0.8, 4.4.0-47-generic, x86_64: installed broadcom-sta, 6.30.223.271: added nvidia-367, 367.57, 4.4.0-47-generic, x86_64: installed psmouse-dkms-alpsv7, 1.0, 3.13.0-32-generic, x86_64: installed virtualbox, 5.0.24, 4.4.0-47-generic, x86_64: installedmodinfo wl返回modinfo: ERROR: Module wl not found.dpkg -l *broadcom*返回Desired=Unknown/Install/Remove/Purge/Hold| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)||/ Name Version Architecture Description +++-==============-============-============-================================= un broadcom-sta-c <none> <none> (no description available) ii broadcom-sta-d 6.30.223.271 all dkms source for the Broadcom STA un broadcom-sta-m <none> <none> (no description available) un broadcom-sta-s <none> <none> (no description available)
无线信息脚本的输出（https://github.com/UbuntuForums/wireless-info)：
########## wireless info START ##########
Report from: 10 Nov 2016 20:26 IST +0530
Booted last: 10 Nov 2016 00:00 IST +0530
Script from: 08 Jul 2016 02:16 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.4.8-040408-generic #201604200335 SMP Wed Apr 20 07:37:30 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
sed: can't read /root/.dmrc: No such file or directory
Could not be determined.
##### lspci #############################
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:0123]
Kernel driver in use: r8169
09:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Lenovo BCM43142 802.11b/g/n [17aa:0611]
Kernel modules: bcma
##### 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 105b:e065 Foxconn International, Inc. BCM43142A0 Bluetooth module
Bus 003 Device 006: ID 22b8:2e24 Motorola PCS
Bus 003 Device 004: ID 24ae:2000
Bus 003 Device 002: ID 5986:029d Acer, Inc
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
##### lsmod #############################
ideapad_laptop 24576 0
sparse_keymap 16384 1 ideapad_laptop
wmi 20480 1 ideapad_laptop
video 40960 2 i915,ideapad_laptop
##### interfaces ########################
auto lo
iface lo inet loopback
auto wlan0
iface wlan0 inet dhcp
wireless-essid Library
##### ifconfig ##########################
enp0s20u2 Link encap:Ethernet HWaddr <MAC 'enp0s20u2' [IF1]>
inet addr:192.168.42.14 Bcast:192.168.42.255 Mask:255.255.255.0
inet6 addr: fe80::fb79:8f5c:f1c4:a912/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9960 errors:0 dropped:0 overruns:0 frame:0
TX packets:9785 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7227879 (7.2 MB) TX bytes:2233132 (2.2 MB)
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF2]>
UP 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)
virbr0 Link encap:Ethernet HWaddr <MAC 'virbr0' [IF3]>
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
UP 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)
virbr0-nic Link encap:Ethernet HWaddr <MAC 'virbr0-nic' [IF4]>
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)
##### iwconfig ##########################
virbr0-nic no wireless extensions.
eth0 no wireless extensions.
virbr0 no wireless extensions.
lo no wireless extensions.
enp0s20u2 no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.42.129 0.0.0.0 UG 100 0 0 enp0s20u2
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 enp0s20u2
192.168.42.0 0.0.0.0 255.255.255.0 U 100 0 0 enp0s20u2
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 6693 1 0 20:22 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: virbr0
GENERAL.TYPE: bridge
GENERAL.NM-TYPE: NMDeviceBridge
GENERAL.VENDOR:
GENERAL.PRODUCT:
GENERAL.DRIVER: bridge
GENERAL.DRIVER-VERSION: 2.3
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'virbr0' [IF3]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /virtual/device/placeholder/2
GENERAL.IP-IFACE: virbr0
GENERAL.IS-SOFTWARE: yes
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: virbr0
GENERAL.CON-UUID: 5686f0c7-25f2-4c61-b227-a5f554e2f08a
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: yes
BRIDGE.SLAVES:
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{25}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 5686f0c7-25f2-4c61-b227-a5f554e2f08a | virbr0
IP4.ADDRESS[1]: 192.168.122.1/24
IP4.GATEWAY:
IP6.GATEWAY:
GENERAL.DEVICE: enp0s20u2
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: motorola
GENERAL.PRODUCT: Moto G (4)
GENERAL.DRIVER: rndis_host
GENERAL.DRIVER-VERSION: 22-Aug-2005
GENERAL.FIRMWARE-VERSION: RNDIS device
GENERAL.HWADDR: <MAC 'enp0s20u2' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/net/enp0s20u2
GENERAL.IP-IFACE: enp0s20u2
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: Wired connection 1
GENERAL.CON-UUID: 1f942f32-cd1f-30e0-85af-891edd75ee41
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/2
GENERAL.METERED: yes (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: on
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{23}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 1f942f32-cd1f-30e0-85af-891edd75ee41 | Wired connection 1
IP4.ADDRESS[1]: 192.168.42.14/24
IP4.GATEWAY: 192.168.42.129
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.42.129
DHCP4.OPTION[1]: requested_subnet_mask = 1
DHCP4.OPTION[2]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[3]: subnet_mask = 255.255.255.0
DHCP4.OPTION[4]: domain_name_servers = 192.168.42.129
DHCP4.OPTION[5]: ip_address = 192.168.42.14
DHCP4.OPTION[6]: requested_static_routes = 1
DHCP4.OPTION[7]: dhcp_server_identifier = 192.168.42.129
DHCP4.OPTION[8]: requested_time_offset = 1
DHCP4.OPTION[9]: broadcast_address = 192.168.42.255
DHCP4.OPTION[10]: requested_interface_mtu = 1
DHCP4.OPTION[11]: dhcp_rebinding_time = 3150
DHCP4.OPTION[12]: requested_domain_name_servers = 1
DHCP4.OPTION[13]: dhcp_message_type = 5
DHCP4.OPTION[14]: requested_broadcast_address = 1
DHCP4.OPTION[15]: routers = 192.168.42.129
DHCP4.OPTION[16]: dhcp_renewal_time = 1800
DHCP4.OPTION[17]: requested_domain_name = 1
DHCP4.OPTION[18]: requested_routers = 1
DHCP4.OPTION[19]: expiry = 1478793178
DHCP4.OPTION[20]: requested_wpad = 1
DHCP4.OPTION[21]: host_name = uz510
DHCP4.OPTION[22]: requested_netbios_scope = 1
DHCP4.OPTION[23]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[24]: requested_netbios_name_servers = 1
DHCP4.OPTION[25]: network_number = 192.168.42.0
DHCP4.OPTION[26]: requested_domain_search = 1
DHCP4.OPTION[27]: vendor_encapsulated_options = ANDROID_METERED
DHCP4.OPTION[28]: next_server = 192.168.42.129
DHCP4.OPTION[29]: requested_host_name = 1
DHCP4.OPTION[30]: dhcp_lease_time = 3600
DHCP4.OPTION[31]: requested_ntp_servers = 1
IP6.ADDRESS[1]: fe80::fb79:8f5c:f1c4:a912/64
IP6.GATEWAY:
GENERAL.DEVICE: eth0
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: rtl8106e-1_0.0.1 06/29/12
GENERAL.HWADDR: <MAC 'eth0' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:08:00.0/net/eth0
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: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
GENERAL.DEVICE: virbr0-nic
GENERAL.TYPE: tun
GENERAL.NM-TYPE: NMDeviceTun
GENERAL.VENDOR:
GENERAL.PRODUCT:
GENERAL.DRIVER: tun
GENERAL.DRIVER-VERSION: 1.6
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'virbr0-nic' [IF4]>
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /virtual/device/placeholder/1
GENERAL.IP-IFACE: virbr0-nic
GENERAL.IS-SOFTWARE: yes
GENERAL.NM-MANAGED: no
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: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
IP4.GATEWAY:
IP6.GATEWAY:
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/Digisol]] (600 root)
[connection] id=Digisol | type=802-11-wireless
[802-11-wireless] ssid=Digisol | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Asia/Kolkata (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (6, 20), (N/A)
(2457 - 2482 @ 40), (6, 20), (N/A), PASSIVE-SCAN
(2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 160), (6, 20), (N/A), PASSIVE-SCAN
(5250 - 5330 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
(5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
virbr0-nic no frequency information.
eth0 no frequency information.
virbr0 no frequency information.
lo no frequency information.
enp0s20u2 no frequency information.
##### iwlist scan #######################
virbr0-nic Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
virbr0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
enp0s20u2 Interface doesn't support scanning.
##### module infos ######################
##### module parameters #################
##### /etc/modules ######################
lp
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/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/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]
# PCI device 0x10ec:0x8136 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF2]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x14e4:0x4365 (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 (r8188eu)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"
##### dmesg #############################
[ 670.713389] r8169 0000:08:00.0 eth0: link down
[ 674.981001] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2
[ 674.981006] Bluetooth: hci0: BCM: Patch brcm/BCM.hcd not found
[ 675.391287] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 675.561144] r8169 0000:08:00.0 eth0: link down
[ 675.561210] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 675.562031] IPv6: ADDRCONF(NETDEV_UP): enp0s20u2: link is not ready
[ 919.516217] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 919.689147] r8169 0000:08:00.0 eth0: link down
[ 919.689213] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 2 times)
[ 1002.937149] r8169 0000:08:00.0 eth0: link down
[ 1002.937214] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 2 times)
[ 1095.837161] r8169 0000:08:00.0 eth0: link down
[ 1095.837217] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1107.859606] IPv6: ADDRCONF(NETDEV_UP): enp0s20u2: link is not ready
[ 1107.860981] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1108.033148] r8169 0000:08:00.0 eth0: link down
[ 1108.033217] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
########## wireless info END ############
答案1
假设您正在运行内核 4.4.8，那么您的所有 dkms 模块都没有为新内核构建，包括您刚刚添加的 broadcom-sta-dkms。
要安装 broadcom-sta-dkms，您需要：
- 打开终端
- 类型
sudo dkms build broadcom-sta/6.30.223.271 - 类型
sudo dkms install broadcom-sta/6.30.223.271
那么dkms status应该改为：
broadcom-sta, 6.30.223.271: added
到：
broadcom-sta, 6.30.223.271: 4.4.8-040408-generic, x86_64: installed
和：
modinfo wl #(should now work)
您需要对其他 dkms 模块执行类似的操作才能使它们再次工作。安全启动应在 BIOS 中保持关闭状态。