Well, yum history shows you the list of updated packages. However, nxagent should not come into touch with the nvidia stuff as it is not using the GPU of your server. So I guess some software inside your mate session is using OpenGL and trying to achieve that via nvidia's libGL. I suggest to try uninstalling the nvidia driver and see if that works. Alternative you may reinstall mesa.
Generally you need to use software rendering. There's a workaround how to achieve that for single applications on the x2go wiki. It might get complicated to use that already for the session startup. Thinking about it leads to this simple test: start an x2go session with xterm instead of xclock. in that xterm start glxgears and see if the session crashes. If you, try another xterm session and run __GLX_VENDOR_LIBRARY_NAME=mesa LIBGL_ALWAYS_SOFTWARE=1 glxgears. Uli _______________________________________________ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user