SX80 Display Turning Off On Active Signal

[Mike Champeno]

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?

[PJMack]

swap the 2nd and 3rd and test again. If the problem stays with the port, it's probable a codec issue. If the problem stays with the screen it's probably the screen or extender. 

[Wayne DeNardi]

Sounds a bit like it could be a CEC issue.  Do all the devices that aren't directly connected properly support CEC?

It's probably also worth noting that the SX80 reaches its End-of-Support date soon (31 October 2024), so should be considered for replacement with a more modern and supportable device.