I have an SX80 system running 3 displays, when the system is in sleep mode all displays show a no signal screen. When the touch panel is woken up the front 2 displays work properly, but the 3rd displays completely turns off. The 2 hdmi outputs on the codec are go to the front displays and the rear display comes from the DVI into a Crestron extender via CAT cable. I confirmed all settings on the display are correct. Could this be an issue with the codec or should I be chasing a different piece?