diff --git a/hwpack/imx6dl-udoo.conf b/hwpack/imx6dl-udoo.conf
index 08d215d..b2c7996 100644
--- a/hwpack/imx6dl-udoo.conf
+++ b/hwpack/imx6dl-udoo.conf
@@ -60,5 +60,4 @@ SERIAL="ttymxc1"
 SERIAL_CONSOLE="${SERIAL},115200n8"
 
 USE_KMS=1
-#usb broken...
-SERIAL_MODE=1
+drm_device_identifier="HDMI-A-1"
diff --git a/hwpack/imx6q-udoo.conf b/hwpack/imx6q-udoo.conf
index f768e25..cb379b5 100644
--- a/hwpack/imx6q-udoo.conf
+++ b/hwpack/imx6q-udoo.conf
@@ -60,5 +60,4 @@ SERIAL="ttymxc1"
 SERIAL_CONSOLE="${SERIAL},115200n8"
 
 USE_KMS=1
-#usb broken...
-SERIAL_MODE=1
+drm_device_identifier="HDMI-A-1"