How have opengl 3.1 with Mesa 10.1?

[Vim_User]

You are probably using an old mesa-demos package (which provides glxinfo). Make sure running latest version (8.1) to detect OpenGL 3.x support correctly.

I am using 8.1.0, so that seems not to be the problem.

You also need to enable the patented float support in mesa, if you didn't.

Do you mean the --enable-texture-float option? I will give that a try.

[Vim_User]

Compiled Mesa with the --enable-texture-float option and now this is what I get:

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD BARTS
OpenGL core profile version string: 3.1 (Core Profile) Mesa 10.0.0
OpenGL core profile shading language version string: 1.40
OpenGL core profile context flags: (none)
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.0.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

Thanks for your help!