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From: "Oliver Lehmann" <oliver@FreeBSD.org>
To: Tom Evans <tevans.uk@googlemail.com>
Date: Thu, 30 Apr 2009 14:21:55 +0200
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Cc: x11@freebsd.org
Subject: Re: Problem with OpenGL and ATI HD3850
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Tom Evans writes:
> 
> fprint(stderr, "%x %s\n", pcVer, pcVer); 

What I now did is (stolen from glxgears): 

        // Set version string
        const GLubyte* pcVer = glGetString(GL_VERSION);
fprintf(stderr,"100\n");
      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
        assert(pcVer && "Problems getting GL version string using 
glGetString");
fprintf(stderr,"101\n");
        String tmpStr = (const char*)pcVer; 

Just to see what glGetString returns - independently what is in pcVer.
The output I'm getting is: 

olivleh1@kartoffel olivleh1> freeorion
unknown chip id 0x9515, can't guess.
100
GL_RENDERER   = (null)
GL_VERSION    = (null)
GL_VENDOR     = (null)
GL_EXTENSIONS = (null)
101
main() caught exception(std::exception): basic_string::_S_construct NULL 
not valid
olivleh1@kartoffel olivleh1> 


Could it be, that there was no "GL context" created before? But than I 
wonder about the output "unknown chip id...". And why the assert() is not 
handling it.