Yep, got it working myself now.
unfortunalelt tat's the end of Amneria:dark descent.. Bummer
"Open Source Drivers do not work
Currently the open source drivers to not provide a complete GLSL 1.20 implementation.. So at this time you MUST use the proprietary NVIDIA or ATI drivers. If you want the open source drivers to support the game I would suggest supporting the Mesa3D and the driver projects to improve the OpenGL support."http://frictionalgames.com/forum/thread-3760.html
also a few isues with supertuxkart,but I'll survive