Comment 4 for bug 1811815

Attached as a DKMS package to test whether the patch works.

Download the file (I'll assume it ends up in $HOME/Downloads/ ).

In a terminal shell do:

$ sudo tar -C / -vxf $HOME/Downloads/ideapad_laptop-33015ICH.dkms.tar.gz

This will extract the files to

    /usr/src/ideapad_laptop-33015ICH/

In case the DKMS tools package is not already installed do:

$ sudo apt install dkms

Now add this test module to the DKMS build system:

$ sudo dkms add ideapad_laptop/33015ICH

Now ensure it builds for the running kernel version:

$ sudo dkms build ideapad_laptop/33015ICH

If no errors reported install the module:

$ sudo dkms install ideapad_laptop/33015ICH

Remove your blacklist file from /etc/modprobe.d/

Load the module:

$ sudo modprobe ideapad-laptop

Ensure the Wifi is still working. If so reboot the PC and check Wifi still starts correctly.

Please report back on your results so we can get this patch upstream and added to Ubuntu.