We have a Sky Q (2TB) box connected via HDMI cable to our Denon AVR X4300.
Our Denon AVR X4300 is connected via a HDMI cable to HDMI 1 port (HDMI 2.0) of our Iiyama PROLITE TE8668MIS-B1AG display.
We were setting up the 4K/ UHD channels on the Sky Q box and wished to set the colour resolution to 10-bit 2160p for TV shows and movies.
Setting Sky to 10-bit 2160p did not work and we had to use 8-bit colour resolution as an error message from Sky said that the colour settings were not set with the display for 10-bit colour resolution.
Iiyama told me that there was no settings to be configured for the display and that the display is set to 10-bit colour resolution and 4K and that a direct connection from Iiyama display to Sky box would work.
What would be the best way of testing the connection between the Sky Q (2TB) box, Denon AVR and Iiyama display to find out what is causing the problem.