Mesa is a 3D graphics library commonly used on many platforms, including Linux, OpenSolaris, and the BSDs. If your system's libGL.so library is provided by Mesa 7.1 or later, OpenGL applications will not run remotely. For example, when you try to run glxinfo, you receive the following error:
To resolve this issue, set the LIBGL_ALWAYS_INDIRECT environment variable. For example:
You can set the LIBGL_ALWAYS_INDIRECT variable using the Command box in Xstart.
Connecting to Hosts with Xstart