Atleast use the right gamma space for the broken sun..

indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl

@@ -49,7 +49,7 @@ void main()
     vec4 sunDiscB = texture2D(altDiffuseMap, vary_texcoord0.xy);
     vec4 c     = mix(sunDiscA, sunDiscB, blend_factor);
 
-    c.rgb = srgb_to_linear(c.rgb);
+    //c.rgb = srgb_to_linear(c.rgb);
     c.rgb = clamp(c.rgb, vec3(0), vec3(1));
     c.rgb = pow(c.rgb, vec3(0.7f));