Dear list,

I found a potential workaround for this problem. Some people [1,2] say
that this can be solved by disabling the VSync in the NVIDIA driver. I
did just that by setting

  export __GL_SYNC_TO_VBLANK = 0

in my .bashrc. Now everything seems to work like a charm again.

Can anyone confirm this behaviour? This seems to point to a bug in the
NVIDIA driver...

Kind regards,
  Bastian

[1] =
https://groups.google.com/forum/#!msg/pyglet-users/HZybWjgw3TE/vUfy5WmM3t0J

[2] =
https://www.opengl.org/discussion_boards/showthread.php/176560-glXWaitVideoSyncSGI-hangs-in-Nvidia-290-10-Linux
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