diff --git a/drm/nouveau/nouveau_backlight.c b/drm/nouveau/nouveau_backlight.c
index 89eb460..03ecc21 100644
--- a/drm/nouveau/nouveau_backlight.c
+++ b/drm/nouveau/nouveau_backlight.c
@@ -36,6 +36,8 @@
 #include "nouveau_reg.h"
 #include "nouveau_encoder.h"
 
+static unsigned int bl_interface_nbs = 0u;
+
 static int
 nv40_get_intensity(struct backlight_device *bd)
 {
@@ -182,6 +194,7 @@ nv50_backlight_init(struct drm_connector *connector)
 	struct backlight_properties props;
 	struct backlight_device *bd;
 	const struct backlight_ops *ops;
+	char* backlight_name = (char*)kmalloc(sizeof(char[13]), GFP_KERNEL);
 
 	nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 	if (!nv_encoder) {
@@ -203,12 +216,20 @@ nv50_backlight_init(struct drm_connector *connector)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = 100;
-	bd = backlight_device_register("nv_backlight", connector->kdev,
+	printk(KERN_INFO "bl_interface_nbs: %u\n", bl_interface_nbs);
+	if (bl_interface_nbs == 0u)
+		sprintf(backlight_name, "nv_backlight");
+	else
+		sprintf(backlight_name, "nv_backlight%u", bl_interface_nbs);
+	printk(KERN_INFO "backlight_name: %s\n", backlight_name);
+	bd = backlight_device_register(backlight_name, connector->kdev,
 				       nv_encoder, ops, &props);
-	if (IS_ERR(bd))
+	if (IS_ERR(bd)) {
+		kfree(backlight_name);
 		return PTR_ERR(bd);
-
+	}
 	drm->backlight = bd;
+	++bl_interface_nbs;
 	bd->props.brightness = bd->ops->get_brightness(bd);
 	backlight_update_status(bd);
 	return 0;