无线 - 在Ubuntu 20.04上,BCM43142 WiFi适配器无法工作

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ubuntu

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问题:

WiFi不工作,我得到"no WiFi adapter found" 错误。

网络信息脚本的结果:


########## wireless info START ##########



Report from: 01 Sep 2020 14:55 +03 +0300



Booted last: 01 Sep 2020 00:00 +03 +0300



Script from: 22 Oct 2018 03:34 UTC +0000



##### release ###########################



Distributor ID: Ubuntu


Description: Ubuntu 20.04.1 LTS


Release: 20.04


Codename: focal



##### kernel ############################



Linux 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux



Parameters: ro, quiet, splash, vt.handoff=7



##### desktop ###########################



Ubuntu



##### lspci #############################



01:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12)


 Subsystem: Acer Incorporated [ALI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1025:0866]


 Kernel driver in use: r8169



02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)


 Subsystem: Lite-On Communications Inc BCM43142 802.11b/g/n [11ad:6645]


 Kernel modules: wl



##### lsusb #############################



Bus 001 Device 002: ID 8087:8000 Intel Corp. 


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 04f2:b452 Chicony Electronics Co., Ltd HD WebCam


Bus 002 Device 002: ID 04ca:2009 Lite-On Technology Corp. BCM43142A0


Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



##### PCMCIA card info ##################



##### rfkill ############################



0: acer-wireless: Wireless LAN


 Soft blocked: no


 Hard blocked: no


1: acer-bluetooth: Bluetooth


 Soft blocked: yes


 Hard blocked: no


6: hci0: Bluetooth


 Soft blocked: yes


 Hard blocked: no



##### secure boot #######################



SecureBoot enabled



##### lsmod #############################



cfg80211 704512 0


acer_wmi 24576 0


wmi_bmof 16384 0


sparse_keymap 16384 1 acer_wmi


mxm_wmi 16384 1 nouveau


wmi 32768 4 acer_wmi,wmi_bmof,mxm_wmi,nouveau


video 49152 3 acer_wmi,i915,nouveau



##### interfaces ########################



##### ifconfig ##########################



1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000


 link/loopback <MAC address> brd <MAC address>


 inet 127.0.0.1/8 scope host lo


 valid_lft forever preferred_lft forever


 inet6 ::1/128 scope host 


 valid_lft forever preferred_lft forever


2: enp1s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000


 link/ether <MAC 'enp1s0f1' [IF1]> brd <MAC address>



##### iwconfig ##########################



enp1s0f1 no wireless extensions.



lo no wireless extensions.



##### route #############################



##### resolv.conf #######################



[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']



nameserver 127.0.0.53


options edns0



##### network managers ##################



Installed:



 NetworkManager



Running:



root 702 1 0 Aug31 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon



##### NetworkManager info ###############



GENERAL.DEVICE: enp1s0f1


GENERAL.TYPE: ethernet


GENERAL.NM-TYPE: NMDeviceEthernet


GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/2


GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.


GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller


GENERAL.DRIVER: r8169


GENERAL.DRIVER-VERSION: --


GENERAL.FIRMWARE-VERSION: --


GENERAL.HWADDR: <MAC 'enp1s0f1' [IF1]>


GENERAL.MTU: 1500


GENERAL.STATE: 20 (unavailable)


GENERAL.REASON: 2 (Device is now managed)


GENERAL.IP4-CONNECTIVITY: 1 (none)


GENERAL.IP6-CONNECTIVITY: 1 (none)


GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.1/net/enp1s0f1


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: 1000 Mb/s


CAPABILITIES.IS-SOFTWARE: no


CAPABILITIES.SRIOV: no


INTERFACE-FLAGS.UP: yes


INTERFACE-FLAGS.LOWER-UP: no


INTERFACE-FLAGS.CARRIER: no


WIRED-PROPERTIES.CARRIER: off


CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --



##### NetworkManager.state ##############



cat: /var/lib/NetworkManager/NetworkManager.state: Permission denied



##### NetworkManager config #############



[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]


[connection]


wifi.powersave = 3



[[/etc/NetworkManager/NetworkManager.conf]]


[main]


plugins=ifupdown,keyfile


[ifupdown]


managed=false


[device]


wifi.scan-rand-mac-address=no



[[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]]


[main]


dns=systemd-resolved



[[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]]


[keyfile]


unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma



[[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]]


[connectivity]


uri=http://connectivity-check.ubuntu.com/



[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]


[device-mac-addr-change-wifi]


match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl


wifi.scan-rand-mac-address=no



##### NetworkManager profiles ###########



##### Netplan config ####################



[/etc/netplan/01-network-manager-all.yaml]


network:


 version: 2


 renderer: NetworkManager



##### iw reg get ########################



Region: Asia/Riyadh (based on set time zone)



global


country 00: DFS-UNSET


 (2402 - 2472 @ 40), (N/A, 20), (N/A)


 (2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN


 (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN


 (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN


 (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN


 (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN


 (5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN


 (57240 - 63720 @ 2160), (N/A, 0), (N/A)



##### iwlist channels ###################



enp1s0f1 no frequency information.



lo no frequency information.



##### iwlist scan #######################



enp1s0f1 Interface doesn't support scanning.



lo Interface doesn't support scanning.



##### module infos ######################



[cfg80211]


filename: /lib/modules/5.4.0-42-generic/kernel/net/wireless/cfg80211.ko


description: wireless configuration support


license: GPL


author: Johannes Berg


srcversion: 2369BA84B34843FE73A01F4


depends: 


retpoline: Y


intree: Y


name: cfg80211


vermagic: 5.4.0-42-generic SMP mod_unload 


sig_id: PKCS#7


signer: Build time autogenerated kernel key


sig_key: 02:B6:04:06:D9:82:F4:38:95:E4:6F:84:9F:1D:B4:8E:C5:85:90:8B


sig_hashalgo: sha512


signature: 11:09:20:94:BE:F4:40:A6:FA:D0:3E:51:A8:D4:D2:61:63:79:98:EB:


 10:58:65:0E:8E:46:FF:83:C3:09:4D:0D:4E:43:FF:34:22:F3:75:27:


 0C:0C:C2:CC:1D:94:31:F0:20:B9:61:67:C9:7C:B4:64:FD:F6:76:2F:


 90:66:77:66:E4:CD:48:E9:0A:AA:2D:4C:AB:65:64:6C:0E:B8:FE:80:


 29:21:79:61:2D:DE:8B:C2:7F:A5:6D:DD:B8:22:E7:4C:5E:DB:36:17:


 98:BE:79:AC:F2:32:15:A4:1A:A5:F3:7D:53:27:44:66:05:C1:4D:9E:


 B4:42:CF:CF:B6:D3:5E:76:51:CD:FE:49:CB:88:40:18:05:12:03:3B:


 C7:00:6A:E2:C2:67:CF:BD:42:FF:1D:7A:22:73:6B:13:85:1C:40:E3:


 2E:66:00:D2:99:A3:DC:1F:21:AB:2F:E4:DB:02:74:83:5B:6D:B7:AE:


 D8:35:05:4D:8F:99:27:08:8D:7A:C8:F3:E8:70:7B:B2:C3:0F:59:B6:


 4F:8F:F4:FE:02:1C:10:A5:60:27:F0:B4:9D:49:00:47:55:BB:14:73:


 4F:25:B1:41:AC:F3:E7:C7:C9:0E:3A:2A:B1:8E:81:B9:8D:29:C9:4E:


 58:BA:82:AC:EB:D2:EA:30:BB:90:F0:72:A4:38:8A:D2:81:65:1B:FB:


 D3:D8:C9:F5:41:3F:5B:9F:AB:76:C0:F4:3D:44:C1:B4:1D:7B:75:0B:


 C6:70:E0:E9:83:D8:33:A7:FE:DB:A0:B1:97:B1:12:26:F7:22:CB:99:


 A8:77:A3:EA:3A:DF:A8:8C:82:64:9F:5B:CD:34:E2:1F:79:09:03:C8:


 3B:F5:A7:20:CA:B2:8C:EF:C6:50:1F:A2:1F:11:21:91:50:6E:6F:A9:


 89:00:5C:4D:84:9D:07:09:BC:A9:2E:B5:F0:1E:BB:75:D7:8E:9C:20:


 8A:6F:40:DD:7E:40:54:38:09:A3:8B:C2:3C:7B:0A:0F:7E:7E:F3:86:


 33:CE:FF:D7:54:5F:89:E4:FE:BB:0F:A2:46:65:20:CE:CC:88:5B:53:


 CF:C9:AD:14:9C:FD:0C:6C:F2:A6:2E:DF:B0:E5:7D:A5:28:B1:9F:ED:


 12:31:4C:BD:DD:15:F3:A3:13:61:5A:FD:51:3C:7B:3F:5B:9F:D5:C9:


 74:B4:2B:F3:6D:6B:96:48:06:29:63:50:1C:6A:3F:F8:C5:43:D4:B1:


 A6:D8:00:1D:D8:A1:BF:B4:66:05:36:3A:E5:9F:BC:8E:F9:A4:F1:31:


 E1:8D:1C:DF:F5:27:19:95:38:73:DE:FF:D1:81:D5:B7:37:D2:B1:81:


 F9:0C:71:F5:5C:30:FF:47:DB:F2:A6:7D


parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)


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]


bss_entries_limit: 1000


cfg80211_disable_40mhz_24ghz: N


ieee80211_regdom: 00



##### /etc/modules ######################



##### modprobe options ##################



[/etc/modprobe.d/amd64-microcode-blacklist.conf]


blacklist microcode



[/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 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/intel-microcode-blacklist.conf]


blacklist microcode



[/etc/modprobe.d/iwlwifi.conf]


remove iwlwifi 


(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) 


&& /sbin/modprobe -r mac80211



##### rc.local ##########################



grep: /etc/rc.local: No such file or directory



##### pm-utils ##########################



##### udev rules ########################



##### dmesg #############################



[ 5426.988330] r8169 0000:01:00.1 enp1s0f1: Link is Down


[ 7457.323889] bluetooth hci0: Direct firmware load for brcm/BCM43142A0-04ca-2009.hcd failed with error -2


[ 7457.323893] Bluetooth: hci0: BCM: Patch brcm/BCM43142A0-04ca-2009.hcd not found


[ 7459.563934] r8169 0000:01:00.1 enp1s0f1: Link is Down



########## wireless info END ############




答案1:


##### secure boot #######################



SecureBoot enabled



注在某些计算机上,在执行命令之前,你需要停用BIOS中的安全启动选项,你可以像这样重新安装,或者通过BIOS设置禁用安全引导:


sudo apt-get install --reinstall bcmwl-kernel-source



如果这没有帮助,尝试在你的计算机EFI/BIOS禁用安全引导。



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