diff --git a/src/mainboard/google/zork/variants/vilboz/overridetree.cb b/src/mainboard/google/zork/variants/vilboz/overridetree.cb
index fac4c7f8b8..43a64b0d7e 100644
--- a/src/mainboard/google/zork/variants/vilboz/overridetree.cb
+++ b/src/mainboard/google/zork/variants/vilboz/overridetree.cb
@@ -42,6 +42,11 @@ chip soc/amd/picasso
 	register "pwrdown_bloff_to_varybloff" = "5"
 	register "min_allowed_bl_level" = "0"
 
+	# Set HDMI 2.0 disable function
+	# bit0~3: disable HDMI 2.0 DDI0~3
+	# disable DDI1
+	register "hdmi2_disable" = "2"
+
 	# USB OC pin mapping
 	register "usb_port_overcurrent_pin[1]" = "USB_OC_NONE"	# LTE instead of USB C1