Comment 59 for bug 1566302

I have a Lenovo z50-70 with a core i7, GForce 840m and recently install the Kernel 4.6 and the problem is solved.
I copy the commands:
cd /tmp
wget
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/linux-headers-4.6.0-040600_4.6.0-040600.201605151930_all.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/linux-headers-4.6.0-040600-generic_4.6.0-040600.201605151930_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/linux-image-4.6.0-040600-generic_4.6.0-040600.201605151930_amd64.deb

sudo dpkg -i linux-headers-4.6*.deb linux-image-4.6*.deb

Bye