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I'm using on Xubuntu 14.10 and I have exactly this model: 80J80021US

I've installed the bcmwl-kernel-source package, used this command sudo rfkill unblock all and also tried to disable ideapad_laptop by running sudo modprobe -r ideapad_laptop.

Nothing seems to work.

If I don't remove the ideapad_laptop I can see the device on the rfkill list:

0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

When I use the command modprobe -r, then there's no wifi adapter at all:

2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

I found a post that said that I should add the wl module to /etc/modules. But then the following is in my log file:

[    5.069958] wl: module license 'MIXED/Proprietary' taints kernel.
[    5.072260] wl: module verification failed: signature and/or  required key missing - tainting kernel
  • What does lspci -nnk | grep -iA2 net say about the wifi – Jeremy31 Apr 13 '15 at 14:07
  • @Jeremy31 It says: 02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:003e] (rev 20) Subsystem: Lenovo Device [17aa:3044] – hoverhand Apr 13 '15 at 14:12
  • wl will not work for your wifi as yours is the same as in this question askubuntu.com/questions/608381/… – Jeremy31 Apr 13 '15 at 14:16
  • 1
    I have the same problem with mine. Everything else about the system runs great (keyboard buttons, touch interfacing, etc.) but the wireless is kaput. So I guess I need an Ethernet-USB adapter to have any shot at fixing this? Or is there any way the drivers can be copied onto the LiveUSB somehow? – Bryson S. Apr 26 '15 at 23:28

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