You're probably right. I have no machine with such a microprocessor but I think you have identified a possible root cause. Please try to modify the machine descriptor and maybe provide a patch. I already fixed some bugs "blindly" (without being able to reproduce it because I didn't have access to a given OS), I won't be able to do that once again.
I've hacked the MachineDescription for my CPU in and it seems to be working. Due to corporate restrictions I'm unable to use git on the Sun (and I'm not familiar with it, either..).
So how to send the patch? There are only two files modified, can I send you these files via mail and you do the patching?
There is no glxinfo on my Solaris box (5.10). The only suitable thing is 'ogl_install_check', which has similar output and reports:
OpenGL API Standard Version 1.4
OpenGL GLX Client Vendor: Sun Microsystems, Inc
OpenGL GLX Client version 1.4 Sun OpenGL
OpenGL GLX Server Vendor: OpenText
OpenGL GLX Server version 1.4
According to a data sheet publishied by OpenText, the Exceed 3D add-on supports only 1.4. It is sufficient for my needs - which may be quite low - but I can visualize my stuff.