TestCpp crashes in Linux

When I start samples/TextCpp/proj.linux/bin/debug/TestCpp,
I connect a XVFB , the display init well, but the program crashes:

cocos2d-x debug info [Not totally ready :frowning:
]
cocos2d-x debug info [OpenGL 2.0 not supported
]
Segmentation fault

please

Can you run other programs with OpenGL >= 2.0 requirement, e.g Valve games? If run environment does not support OpenGL 2.0, cocos2dx will not run - and this is not a bug.