[PD] GEM glsl

[Max]

out of curiosity I tried it under ubuntu 12.4 what doesn't work either.

the print messages gives me: 
[glsl_geometry]: geometry_shader Hardware Info
[glsl_geometry]: ============================
[glsl_geometry]: MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT: 2048
[glsl_geometry]: MAX_VARYING_FLOATS: 124
[glsl_geometry]: MAX_COMBINED_TEXTURE_IMAGE_UNITS: 160
[glsl_geometry]: MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT: 32
[glsl_geometry]: MAX_TEXTURE_IMAGE_UNITS: 32
[glsl_geometry]: MAX_TEXTURE_COORDS: 8


running the shader results in:
linking: link -1 0 16
linking: link 0 0 16
GL: invalid value