Dear VirtualGL users  and developers,

  We try to run virtualgl using;

VirtualGL-2.5.90.x86_64.rpm

LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID:    Scientific
Description:    Scientific Linux release 7.4 (Nitrogen)
Release:    7.4
Codename:    Nitrogen


+-----------------------------------------------------------------------------+
| NVIDIA-SMI 396.26                 Driver Version: 
396.26                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. 
ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute 
M. |
|===============================+======================+======================|
|   0  Quadro K1200        Off  | 00000000:02:00.0  On |                  
N/A |
| 39%   32C    P8     1W /  35W |     23MiB /  4043MiB |      0%      
Default |
+-------------------------------+----------------------+----------------------+
                                                                               

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU 
Memory |
|  GPU       PID   Type   Process name                             
Usage      |
|=============================================================================|
|    0      6243      G   /usr/bin/X                                    
20MiB |
+-----------------------------------------------------------------------------+

We already runned the vglserver_config and the vglrun result is:

vglrun glxgears 
[VGL] NOTICE: Automatically setting VGL_CLIENT environment variable to
[VGL]    143.106.6.188, the IP address of your SSH client.
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
[VGL] WARNING: The OpenGL rendering context obtained on X display
[VGL]    :0 is indirect, which may cause performance to suffer.
[VGL]    If :0 is a local X display, then the framebuffer device
[VGL]    permissions may be set incorrectly.
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
[VGL] ERROR: in readPixels--
[VGL]    394: GL_ARB_pixel_buffer_object extension not available


any suggestion ?

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