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What would be the best way of testing the connection between the Sky Q (2TB) box, Denon AVR X4300 and Iiyama display to find out why we can't set Sky to 10-bit 2160p colour resolution


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.

IP4IT Staff
IP4IT Staff
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David Johnson, CD, MVPOwnerCommented:
You need High Speed HDMI Cable: Supports up to 4K at 60Hz, 3D, and Deep Color display technologies

Regular HDMI cables top out at 1080p resolution
IP4IT StaffAuthor Commented:
I believe that we did use a 4K cable, what I am trying to find out is if there is a way to test if the cabling is delivering 4K? Or indeed if we mixed up cables and a standard-non 4k cable goyt installed.

It is embedded behind plasterboard, so I am hoping it is the correct spec and working properly, I just need to test if I am getting 4K out of it. Is there a way to test for that?

David Johnson, CD, MVPOwnerCommented:
plug the sky box directly to the TV

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