Works out of the box.
I did a fresh install of Ubuntu 12.04, and after wake up from suspend,I got a black screen, but the computer is in running . I didn't have this problem in the previous release (Oneiric). I have an Acer Extensa 4420 laptop.
I installed Ubuntu 14.04.1 on an Acer Extensa 5420.
I tried Peppermint, and a couple other distros...to no avail.
Everything works out of the box except the wireless card...
This issue is driving me crazy!!!