diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index e12cc3504d48..34bf97d4d463 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -463,7 +463,11 @@ static int bl_get_brightness(struct backlight_device *b)
 
 static int bl_update_status(struct backlight_device *b)
 {
+	unsigned long long blank;
+	acpi_status status;
+	acpi_handle handle;
 	int ret;
+
 	if (b->props.power == FB_BLANK_POWERDOWN)
 		ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
 	else
@@ -473,6 +477,26 @@ static int bl_update_status(struct backlight_device *b)
 			"Unable to adjust backlight power, error code %i\n",
 			ret);
 
+	vdbg_printk(FUJLAPTOP_DBG_INFO, "Backlight power set to %d\n", b->props.power);
+
+	status = acpi_evaluate_integer(NULL, "\\BLCT", NULL, &blank);
+	if (ACPI_SUCCESS(status))
+		vdbg_printk(FUJLAPTOP_DBG_INFO, "BLCT = %llx\n", blank);
+	else
+		vdbg_printk(FUJLAPTOP_DBG_ERROR, "Cannot evaluate BLCT\n");
+
+	status = acpi_evaluate_integer(NULL, "\\NGTM", NULL, &blank);
+	if (ACPI_SUCCESS(status))
+		vdbg_printk(FUJLAPTOP_DBG_INFO, "NGTM = %llx\n", blank);
+	else
+		vdbg_printk(FUJLAPTOP_DBG_ERROR, "Cannot evaluate NGTM\n");
+
+	status = acpi_get_handle(NULL, "\\_SB.FEXT.SBLC", &handle);
+	if (ACPI_SUCCESS(status))
+		vdbg_printk(FUJLAPTOP_DBG_INFO, "Got ACPI handle for SBLC\n");
+	else
+		vdbg_printk(FUJLAPTOP_DBG_ERROR, "Cannot get ACPI handle for SBLC\n");
+
 	if (use_alt_lcd_levels)
 		ret = set_lcd_level_alt(b->props.brightness);
 	else
-- 
2.12.0