I spent a good part of the day going thru the settings of both devices as well as looking at online Sony and Panasonic help pages.
I was about to contact Sony when I thought of the possible cause. I use an HDMI -splitter to feed the signal from the Panasonic to both the TV and my graphics monitor.
I removed the splitter and now directly feed to the HDMI of the TV only. Problem fixed.
I only used the monitor for 'background' use, to save on the old Plasma TVs 500W power consumption. Now I have a LED(actually liquid-crystal) TV that arrangement is no longer required.
If you are going to use an HDMI splitter, get a CEC capable one if you wish to use the CEC function between CEC equipped devices.
I am getting too old for this modern electronics compatibility stuff.
I was about to contact Sony when I thought of the possible cause. I use an HDMI -splitter to feed the signal from the Panasonic to both the TV and my graphics monitor.
I removed the splitter and now directly feed to the HDMI of the TV only. Problem fixed.
I only used the monitor for 'background' use, to save on the old Plasma TVs 500W power consumption. Now I have a LED(actually liquid-crystal) TV that arrangement is no longer required.
If you are going to use an HDMI splitter, get a CEC capable one if you wish to use the CEC function between CEC equipped devices.
I am getting too old for this modern electronics compatibility stuff.
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