Apr 17, 2019, 9:47 AM

Thank you, I tried with the three versions 3.2, 4.2 and 4.5 but it didn't work ...

I inserted the line
MESA_GL_VERSION_OVERRIDE=4.5 ./SAMSON-Core

just before the final line of ./SAMSON-Core.sh :
echo "restoring context"

(I don't know if it is the right place...)