4

I'm new here. I'm sorry when I make a mistake. I have just installed UBUNTU 16.04 LTS/

I have problem with Wifi.

I can't enable wifi in my laptop. I have lenovo G50-70.

iwconfig:

enp1s0    no wireless extensions.    
lo        no wireless extensions.

The output for sudo lshw -C network is:

 *-network
 UNCLAIMED

network-manager is already the newest version (1.2.6-0ubuntu0.16.04.2).

It's showing me only bluetooth and nothing about wireless. rfkill list all:

1: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

I have Windows 8.1 on this computer too and wifi is working properly.

lspci -knn | grep Net -A3; rfkill list

libkmod: ERROR ../libkmod/libkmod-config.c:635 kmod_config_parse: /etc/modprobe.d/blacklist-ideapad.conf line 2: ignoring bad line starting with '“blacklist'
02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
    Subsystem: Lenovo BCM43142 802.11b/g/n [17aa:0621]
    Kernel modules: wl
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

sudo modprobe wl:

modprobe: FATAL: Module wl not found in directory /lib/modules/4.13.0-39-generic
George Udosen
  • 37,534
supermario
  • 43

2 Answers2

1

In your readings, we saw a malformed and possibly un-needed .conf file and suggested that you remove it.

sudo rm /etc/modprobe.d/blacklist-ideapad.conf

Next, we found that the needed module was not installed in your currently running kernel and suggested that you re-install it.

sudo apt install --reinstall bcmwl-kernel-source

Finally, we found that Secure Boot was preventing the loading of the module and suggested that it be disabled in the BIOS.

With these changes, your wireless is working.

chili555
  • 61,330
0

Open Additional drivers in Software and updates and see any driver for this. If its there install. If its not showing anything. Try to install following package. Open terminal run this command

sudo apt-get install bcmwl-kernel-source

sudo modprobe wl

Reboot once and try.

Curious
  • 19