diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 9555a35420220ed21871aa38adc11cb164a79323..831b73392d82c1bb1d92f83f81c3389c842e3045 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -644,6 +644,7 @@ static void ast_crtc_commit(struct drm_crtc *crtc)
 {
 	struct ast_private *ast = crtc->dev->dev_private;
 	ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
+	ast_crtc_load_lut(crtc);
 }