http://www.jwz.org/xscreensaver/xscreensaver-5.09.tar.gz

[xscreensaver] / hacks / glx / xlock-gl-utils.c

diff --git a/hacks/glx/xlock-gl-utils.c b/hacks/glx/xlock-gl-utils.c
index d72b4ebdd4aa4ad0d4884893441d05c3e4aecec0..3f41f9bf0905658e9630411864d63d5fc85091e8 100644 (file)
--- a/hacks/glx/xlock-gl-utils.c
+++ b/hacks/glx/xlock-gl-utils.c
@@ -118,6 +118,8 @@ init_GL(ModeInfo * mi)
       glDrawBuffer (GL_FRONT);
   }
 
+  /* Sometimes glDrawBuffer() throws "invalid op". Dunno why. Ignore. */
+  clear_gl_error ();
 
   /* GLXContext is already a pointer type.
      Why this function returns a pointer to a pointer, I have no idea...