diff --git a/src/mainboard/kontron/ktqm77/romstage.c b/src/mainboard/kontron/ktqm77/romstage.c
index 09fd634606..d74f3a6da3 100644
--- a/src/mainboard/kontron/ktqm77/romstage.c
+++ b/src/mainboard/kontron/ktqm77/romstage.c
@@ -140,13 +140,22 @@ static void pnp_exit_ext_func_mode(device_t dev)
 
 static void superio_gpio_config(void)
 {
+	int lvds_3v = 0; // 0 (5V) or 1 (3V3)
+	int dis_bl_inv = 1; // backlight inversion: 1 = disabled, 0 = enabled
 	device_t dev = PNP_DEV(0x2e, 0x9);
 	pnp_enter_ext_func_mode(dev);
+	pnp_write_config(dev, 0x29, 0x02); /* Pins 119, 120 are GPIO21, 20 */
+	pnp_write_config(dev, 0x30, 0x03); /* Enable GPIO2+3 */
+	pnp_write_config(dev, 0x2a, 0x01); /* Pins 62, 63, 65, 66 are
+					      GPIO27, 26, 25, 24 */
+	pnp_write_config(dev, 0x2c, 0xc3); /* Pin 90 is GPIO32,
+					      Pins 78~85 are UART B */
+	pnp_write_config(dev, 0x2d, 0x00); /* Pins 67, 68, 70~73, 75, 77 are
+					      GPIO57~50 */
 	pnp_set_logical_device(dev);
 	/* Values can only be changed, when devices are enabled. */
-	pnp_write_config(dev, 0x30, 0x03); /* Enable GPIO2+3 */
 	pnp_write_config(dev, 0xe3, 0xdd); /* GPIO2 bits 1, 5 are output */
-	pnp_write_config(dev, 0xe4, 0x22); /* GPIO2 bits 1, 5 are 1 */
+	pnp_write_config(dev, 0xe4, (dis_bl_inv << 5) | (lvds_3v << 1)); /* GPIO2 bits 1, 5 */
 	pnp_exit_ext_func_mode(dev);
 }