Comment 2 for bug 1496300

Slightly better:

$ sudo glxinfo | grep OpenGL
Failed to open BO for returned DRI2 buffer (100x100, dri2 fake front buffer, named -1).
This is likely a bug in the X Server that will lead to a crash soon.
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Haswell Desktop
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.6.3
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
Failed to open BO for returned DRI2 buffer (100x100, dri2 fake front buffer, named -1).
This is likely a bug in the X Server that will lead to a crash soon.
OpenGL version string: 3.0 Mesa 10.6.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
Failed to open BO for returned DRI2 buffer (100x100, dri2 fake front buffer, named -1).
This is likely a bug in the X Server that will lead to a crash soon.
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.6.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions: