Wifi Not Working On Ubuntu 14.04 Lenovo G 50-30

Blacklisting ideapad_laptop is not the best solution, because some features like Fn buttons may be disabled too. Here is the bug report

I made a patch that fixes this issue. Before this patch reaches stable kernels you can use a patched module from my ppa. Install it this way:

sudo add-apt-repository ppa:hanipouspilot/ideapad-laptop
sudo apt-get update
sudo apt-get install ideapad-laptop-dkms

If you already blacklisted ideapad_laptop, you can undo it by

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

Update: The patch has been accepted upstream and already reached Ubuntu kernels. The fix is in kernel 3.19.0-26. The next kernel update will fix the issue for Ubuntu 15.04 and 14.04.3.

After that the package and the PPA can be removed by

sudo apt-get purge ideapad-laptop-dkms
sudo add-apt-repository -r ppa:hanipouspilot/ideapad-laptop

Update For those who uses kernel 3.19 this ppa can be removed since 3.19.0-26 kernel includes this patch.

Now the issue is fixed in all Ubuntu kernels.

try removing the ideapad_laptop module

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

Source: praseodym (german) ubuntu-forum.de

Proove :

we have 2 of those laptops here and i had the same issue, it was fixed by this.

I tested the 14.10 Development version and 14.04.

Some do say the never kernel version (3.15 onwards) should solve this, it did not for me.

Other comments here on AU tell that you can enable wireless by doing:

Boot windows install the wifi drivers and the energy management solution from lenovo and enable WIFI there.

As i wiped the WIN8 installation i cannot tell if that works, too.