How to avoid this Xvfb error: ES2 Prism: Error - GLX extension is not supported

[Long Vu]

Hi,

We use Xvfb to avoid having to run an X server on our build machine.

We got this error with Xvfb that we do not have when we were running a
real VNC server just to provide X.

ES2 Prism: Error - GLX extension is not supported
   GLX version 1.3 or higher is required
Xlib:  extension "RANDR" missing on display ":99".

Is there something we can do to avoid this error?

We are using this version of xvfb on Centos 7:
xorg-x11-server-Xvfb-1.17.2-10.el7.x86_64

Thanks,

-- 
Long Vu | Build Controller | Intelerad | +1-514-931-6222 ext. 7743

-- 

This email or any attachments may contain confidential or legally 
privileged information intended for the sole use of the addressees. Any 
use, redistribution, disclosure, or reproduction of this information, 
except as intended, is prohibited. If you received this email in error, 
please notify the sender and remove all copies of the message, including 
any attachments.