diff -urN a/boot/config.txt b/boot/config.txt
--- boot/config.txt	2017-01-14 10:43:33.261981080 +0100
+++ boot/config.txt	2017-01-14 10:46:49.711975447 +0100
@@ -1,14 +1,16 @@
 hdmi_force_hotplug=1
 hdmi_drive=2
 hdmi_group=2
-hdmi_mode=85
+hdmi_mode=87
+hdmi_cvt=800 480 60 6 0 0 0
-config_hdmi_boost=5
-disable_overscan=1
 kernel=zImage
 dtparam=audio=on
 dtparam=i2c1=on
 dtparam=i2c_arm=on
 dtoverlay=vc4-kms-v3d,cma-256
+dtoverlay=i2c-rtc,ds3231
+dtoverlay=rpi-backlight
+dtoverlay=rpi-ft5406
 initramfs ramdisk.img 0x01f00000
 mask_gpu_interrupt0=0x400
 avoid_warnings=2
diff -urN a/system/build.prop b/system/build.prop
--- system/build.prop	2017-01-14 10:43:45.599461656 +0100
+++ system/build.prop	2017-01-14 10:45:22.272038933 +0100
@@ -44,7 +44,6 @@
 #
 # from device/brcm/rpi3/system.prop
 #
-debug.drm.mode.force=1280x720
 ril.function.dataonly=1
 ro.build.selinux=1
 ro.build.characteristics=tablet