problemas con wifi bcm43142 802.11b/g/n

[jesemar]

Hola, acabo de instalarme linux mint 20.2 en un hp notebook 15-ay050nsn. Funciona todo muy bien, excepto el wifi.
Esta es la información del sistema:

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System:    Kernel: 5.4.0-80-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: MATE 1.24.0 
           wm: marco dm: LightDM Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: HP product: HP Notebook v: Type1ProductConfigId serial: <filter> 
           Chassis: type: 10 serial: <filter> 
           Mobo: HP model: 81EC v: 61.28 serial: <filter> UEFI: Insyde v: F.09 date: 05/19/2016 
Battery:   ID-1: BAT1 charge: 23.0 Wh condition: 29.2/41.4 Wh (71%) volts: 16.2/14.8 
           model: Hewlett-Packard PABAS0241231 serial: <filter> status: Unknown 
CPU:       Topology: Dual Core model: Intel Core i7-6500U bits: 64 type: MT MCP arch: Skylake 
           rev: 3 L2 cache: 4096 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 20799 
           Speed: 2813 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 2801 2: 2821 3: 2806 
           4: 2810 
Graphics:  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Hewlett-Packard driver: i915 
           v: kernel bus ID: 00:02.0 chip ID: 8086:1916 
           Display: x11 server: X.Org 1.20.9 driver: amdgpu,ati,modesetting unloaded: fbdev,vesa 
           compositor: marco resolution: 1920x1080~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: Mesa Intel HD Graphics 520 (SKL GT2) v: 4.6 Mesa 20.2.6 
           direct render: Yes 
Audio:     Device-1: Intel Sunrise Point-LP HD Audio vendor: Hewlett-Packard driver: snd_hda_intel 
           v: kernel bus ID: 00:1f.3 chip ID: 8086:9d70 
           Sound Server: ALSA v: k5.4.0-80-generic 
Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Hewlett-Packard 
           driver: r8169 v: kernel port: 3000 bus ID: 02:00.0 chip ID: 10ec:8136 
           IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: <filter> 
           Device-2: Broadcom and subsidiaries BCM43142 802.11b/g/n vendor: Hewlett-Packard 
           driver: bcma-pci-bridge v: N/A port: 3000 bus ID: 03:00.0 chip ID: 14e4:4365 
Drives:    Local Storage: total: 931.51 GiB used: 23.20 GiB (2.5%) 
           ID-1: /dev/sda vendor: Crucial model: CT1000MX500SSD1 size: 931.51 GiB speed: 6.0 Gb/s 
           serial: <filter> 
Partition: ID-1: / size: 915.40 GiB used: 11.60 GiB (1.3%) fs: ext4 dev: /dev/sda2 
USB:       Hub: 1-0:1 info: Full speed (or root) Hub ports: 12 rev: 2.0 chip ID: 1d6b:0002 
           Device-1: 1-1:2 info: Chicony HP Skylab USB Smartcard Keyboard 
           type: Keyboard,Smart Card,HID driver: hid-generic,usbhid rev: 2.0 chip ID: 04f2:1469 
           Device-2: 1-2:3 info: YK 2.4G Wireless Device type: Mouse,Keyboard 
           driver: hid-generic,usbhid rev: 1.1 chip ID: 3938:1080 
           Device-3: 1-4:4 info: Broadcom BCM43142A0 Bluetooth 4.0 type: <vendor specific> 
           driver: btusb rev: 2.0 chip ID: 0a5c:216d 
           Device-4: 1-5:5 info: Cheng Uei Precision Industry (Foxlink) HP TrueVision HD 
           type: Video driver: uvcvideo rev: 2.0 chip ID: 05c8:038f 
           Hub: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 3.0 chip ID: 1d6b:0003 
Sensors:   System Temperatures: cpu: 43.5 C mobo: N/A gpu: amdgpu temp: 10 C 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http: //packages.linuxmint.com uma main upstream import backport
           2: deb http: //archive.ubuntu.com/ubuntu focal main restricted universe multiverse
           3: deb http: //archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
           4: deb http: //archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
           5: deb http: //security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb http: //archive.canonical.com/ubuntu/ focal partner
Info:      Processes: 212 Uptime: 40m Memory: 7.67 GiB used: 1.65 GiB (21.5%) Init: systemd v: 245 
           runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Client: Unknown python3.8 client inxi: 3.0.38 

El controlador que ha instalado es bcmwl-kernel-source versión 6.30.223.271+bdcom-0ubuntu8
He deshabilitado en la bios el arranque seguro.
¿qué puedo hacer? Gracias.

[sleeper12]

Quizás necesite usar el controlador wl. Intentar:

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 sudo modprobe -rv bcma wl 

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 sudo modprobe -v wl 

Reinicie si es necesario.

[jesemar]

lo he intentado pero da error:
jesemar@jesemar-HP-Notebook:~$ sudo modprobe -rv bcma wl
rmmod bcma
modprobe: FATAL: Module wl not found.
jesemar@jesemar-HP-Notebook:~$ sudo modprobe -v wl
modprobe: FATAL: Module wl not found in directory /lib/modules/5.4.0-80-generic

[sleeper12]

Ok, no estoy segura de si esto ayudará, pero intenta:

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 sudo apt install --reinstall linux-headers-generic 

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 sudo apt install --reinstall bcmwl-kernel-source 

Si eso funciona sin errores, publique los resultados de:

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 lspci -nnk | grep -iA3 net 

[jesemar]

Muchas gracias sleeper12, ha funcionado:
lspci -nnk | grep -iA3 net
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller [103c:81ec]
Kernel driver in use: r8169
Kernel modules: r8169
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]
Kernel driver in use: wl
Kernel modules: bcma, wl

[sleeper12]

Muy bien, me alegro de que te haya funcionado.