3 files changed, 6 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_state.c b/src/mesa/drivers/dri/nouveau/nouveau_state.c
index e1871db0eb9..bc610451b40 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_state.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_state.c
@@ -150,6 +150,7 @@ nouveau_enable(GLcontext *ctx, GLenum cap, GLboolean state)
 		break;
 	case GL_COLOR_SUM_EXT:
 		context_dirty(ctx, FRAG);
+		context_dirty(ctx, LIGHT_MODEL);
 		break;
 	case GL_CULL_FACE:
 		context_dirty(ctx, CULL_FACE);
diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c b/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c
index 6db14d83b83..406e24c455d 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c
@@ -201,8 +201,10 @@ nv10_emit_light_model(GLcontext *ctx, int emit)
 	BEGIN_RING(chan, celsius, NV10TCL_LIGHT_MODEL, 1);
 	OUT_RING(chan, ((m->LocalViewer ?
 			 NV10TCL_LIGHT_MODEL_LOCAL_VIEWER : 0) |
-			(m->ColorControl == GL_SEPARATE_SPECULAR_COLOR ?
-			 NV10TCL_LIGHT_MODEL_SEPARATE_SPECULAR : 0)));
+			(NEED_SECONDARY_COLOR(ctx) ?
+			 NV10TCL_LIGHT_MODEL_SEPARATE_SPECULAR : 0) |
+			(!ctx->Light.Enabled && ctx->Fog.ColorSumEnabled ?
+			 NV10TCL_LIGHT_MODEL_VERTEX_SPECULAR : 0)));
 }
 
 static float
diff --git a/src/mesa/drivers/dri/nouveau/nv20_state_tnl.c b/src/mesa/drivers/dri/nouveau/nv20_state_tnl.c
index 0d566064f67..43f8c723122 100644
--- a/src/mesa/drivers/dri/nouveau/nv20_state_tnl.c
+++ b/src/mesa/drivers/dri/nouveau/nv20_state_tnl.c
@@ -158,7 +158,7 @@ nv20_emit_light_model(GLcontext *ctx, int emit)
 	OUT_RING(chan, ((m->LocalViewer ?
 			 NV20TCL_LIGHT_MODEL_VIEWER_LOCAL :
 			 NV20TCL_LIGHT_MODEL_VIEWER_NONLOCAL) |
-			(m->ColorControl == GL_SEPARATE_SPECULAR_COLOR ?
+			(NEED_SECONDARY_COLOR(ctx) ?
 			 NV20TCL_LIGHT_MODEL_SEPARATE_SPECULAR :
 			 0)));