Hi, I purchased a new Yamaha AV receiver last week and its been driving me potty trying to get this to work with my 6 week old QE75Q9FNAT tv. The AV receiver plugs in to HDMI 4 on the one connect box with all sources plugging into the Yamaha and that doing all the switching of the picture and sound.
The receiver is set to pass through and the HDMI handshakes with the TV and plays the video. The problem is that when you change a source on the receiver and it changes resolution (i.e. 1080p to 4K HDR) it looses the handshake and cant reconnect the HDMI. That is until you power it all down and physically unplug the hdmi lead in the one connect and reconnect it, then when its powered up it will work again until he source resolution is changed.
The issue seems to be when the tv tries to detect the new 10bit HDR source a big blue splash screen appears telling me its changing the display and then HDMI then cant handshake again. I've tried loads of things including about 9 different HDMI leads been on the phone to Yamaha tech support who are superb (lesson to be learnt here Samsung).
The system is fine switching between 4k HDR from SKY Q and the Nvidia Sheild as the sources are the same and it will even switch to the 1080p Playstation 4 fine. Going back from the PS4 to a 4k HDR (10Bit) source the HDMI hangs after the TV comes up with the detecting source message. The issue seems to be with 10Bit colour signals where the problem is as 8 bit is processed fine and the TV doesnt do anything.
I've tried lots of different settings including turning off HDMI auto detect which works, the problem is this doesnt stay in the mode you set it to and when the TV turns off it defaults to back on. This should be an option in the menu and not a trick you have to learn about from the internet. HDMI-CEC has been tried on and off and doesnt make and difference, ive left it off for now.
Is there a way to stop the tv trying to detect the source and process it after all its all coming through HDMI port4 (the other ports all act the same). Or to permantly set HDMI auto detect to off. I just want it to act as a display for the signal from the receiver and do nothing else. At the minute im disconnecting and reconnecting the HDMI port about 5 time a day at the moment to get the connection back.
Ive spoken to tech support who are abroad somewhere and they really dont understand what I'm saying even telling me at one point the display doesnt support 10 bit colour signals.
