update display configures in raspi-firmware/config.txt
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
-#hdmi_group=1
-#hdmi_mode=1
+hdmi_group=2 # DMT
+hdmi_mode=85 # 1280x720
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
