docs: document the LIBGL_DRI3_DISABLE environment variable

Suggested-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Martin Peres <martin.peres@linux.intel.com>

diff --git a/docs/envvars.html b/docs/envvars.html
index 31d14a45abb08a3f80592b71875d55d3f2d2c1bc..c0d5a51b482455844be7a79888d967d4e56ecc3b 100644 (file)
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -34,6 +34,7 @@ sometimes be useful for debugging end-user issues.
 <li>LIBGL_NO_DRAWARRAYS - if set do not use DrawArrays GLX protocol (for debugging)
 <li>LIBGL_SHOW_FPS - print framerate to stdout based on the number of glXSwapBuffers
     calls per second.
+<li>LIBGL_DRI3_DISABLE - disable DRI3 if set (the value does not matter)
 </ul>