I just followed this link.
and installed starcraft 2 on my Ubuntu 14.04 LTS.
The game starts with no problems. But when it comes to naming my character, I am unable to type any characters into the textbox.
If I chose to skip that, the next step asks me for my battle.net ID (although I am already logged in). Also here I am unable to type anything.
I am really new to Linux. Will appreciate any insight greatly.