I downloaded the Cubian Desktop r1 SD image for A20 cubieboard. It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.
The screen is just a blank screen of light blue. Unresponsive to keyboard.
Can't get in via ssh either.
The only light on is the power light when it hangs. When it hangs, it can be turned off with the power button but otherwise seems unresponsive.