XQuartz 2.7.8 works fine; all releases since then result in the following error when using glxinfo:


X Error of failed request:  BadValue (integer parameter out of range for operation)

  Major opcode of failed request:  150 (GLX)

  Minor opcode of failed request:  3 (X_GLXCreateContext)

  Value in failed request:  0x0


This appears to be independent of the MacOS version, and is rather an introduced bug in XQuartz.

This issue has been reported on several blogs/forums.


Workaround: roll back to XQuartz 2.7.8


Server environment (Ubuntu/Trusty):

GPU 0: GeForce 9800 GTX/9800 GTX+ (UUID: GPU-824df94c-eb1a-7d03-7a3b-d8b7f9f74025)
nvidia-340, 340.96, 3.13.0-87-generic, i686: installed
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G92 [GeForce 9800 GTX / 9800 GTX+] [10de:0612] (rev a2)
[    25.314] (II) NVIDIA dlloader X Driver  340.96  Sun Nov  8 21:48:15 PST 2015
[    25.128] (II) NVIDIA GLX Module  340.96  Sun Nov  8 22:11:26 PST 2015

client glx vendor string: NVIDIA Corporation
client glx version string: 1.4

direct rendering: No
server glx vendor string: SGI
server glx version string: 1.4


Client environment (Mac OS X 10.11.4 El Capitan)
GPU: Intel Iris Pro