Lubuntu 16 freeze after suspend? Upgrade the kernel!
After upgrade to Lubuntu 16, your laptop (in my case, a Lenovo G50-45) not responding when suspended? It can be solved upgrading the kernel to 4.4.8.
Canonical has packed all the kernel releases as deb packages and made them available for Ubuntu-based systems, via its kernel.ubuntu.com repository.
Simply follow this steps, from http://linuxdaddy.com/:
$ cd /tmp
$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.8-wily/linux-headers-4.4.8-040408_4.4.8-040408.201604200335_all.deb
$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.8-wily/linux-headers-4.4.8-040408-generic_4.4.8-040408.201604200335_amd64.deb
$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.8-wily/linux-image-4.4.8-040408-generic_4.4.8-040408.201604200335_amd64.deb
$ sudo dpkg -i linux-headers-4.4*.deb linux-image-4.4*.deb
And reboot!
That’s it! :-)