Comment 50 for bug 1320070

I found this solution, and worked perfectly on a Lenovo g40-30 so i guess it should work in other lenovo pc...

quote:

for one time test:

    sudo rmmod ideapad_laptop

for working after reboot:

    echo "blacklist ideapad_laptop" | sudo tee -a /etc/modprobe.d/blacklist-ideapad.conf

found it in: http://askubuntu.com/questions/507470/wifi-not-working-on-ubuntu-14-04-lenovo-g-50-30/535976#535976

prior to that I re-installed the module, updated the kernel to 3.16, and none of that worked.
this piece of code did make the realtek run