Ubuntu
mesa package

  1. Bug #384001
  2. Comment #64

Comment 64 for bug 384001

Revision history for this message
Alasdair Allan (aa-astro) wrote :

Confirmed that this still affects Ubuntu 10.04 Server, forwarding onto a Mac OS X 10.6 system. However the

% setenv LIBGL_ALWAYS_INDIRECT yes

work around before running the affected application seems to resolve the problem.

Whereas direct rendering means that application can access the GPU hardware directly without communication with the X server first via Mesa, indirect rendering means that the GLX protocol will be used to transmit OpenGL commands and the X server will do the real drawing. Direct rendering is faster as it does not require change of context into X process of course, although in both cases rendering is done on the GPU if acceleration is present.