Black Plague crash after menu, Overture and Requiem crash on start

[Urkle]

can you try something.... edit the ~/.frictionalgames/Penumbra/Overture/settings.cfg and add these two attributes to the <Graphics/> tag

ForceFP="GLSLF" ForceVP="GLSLV"

This will force the GLSL shader language to be used instead of the ARB language. Then post the hpl.log for overture after slowly increasing your shader quality.