System: Kubuntu 14.04 64 bit, Video: AMD 6770m with open-source drivers. Problem: There are no shadows of spacecrafts on the planets, and it's hard to perform precise landing. I got some mods previously, but I reinstalled the game from steam (I think, this should have reverted all configs?). Even if all video settings are at their maximum, there are no shadows (no shadows on terrain and no self-shadowing on the ships, should they be? However, flat shading is on it's place). The only fix I've found on this forum is Intel-related and most likely won't help in my situation. What can I do to diagnose and fix my problem?