I have more clarity on the 45' Monoprice Cabernets that I've been using with the P75. I have two of them and experience the following:
Cable 1: quick to lock on to any signal, even 18 Gbps signals. It has a large quantity of white pixel sparkles though when the bandwidth goes over the 10/11 Gbps range. So it sparkles with 4:4:4 8bit 60Hz output as well as 4:2:2 output. 4:2:0 output of any frame rate or at 10bit does not.
Cable 2: horrendous at locking on to any signals. Takes up to minutes and sometimes won't lock on at all. Once it does get a signal, it does also sparkle at higher bandwidth but much much less than cable 1.
The 40' Celerity cable for me could not lock on to anything at higher bandwidth.
This is all going through an AV7702mkII. I have tried the 2 Cabernets on either output of the preamp and they act the same regardless. The Celerity though failed even going source direct to the display at high bandwidth.
I have several 40' Cabernets that I'll be installing this week. I hope shaving the 5' makes a difference. I'm so close to having a solid working setup, just need the signaling without the sparkles.
Tonight I'm going to test one more time going source direct to the display through either Cabernet and see what I get.
Specifically, my Roku Ultra, Chromecast Ultra, and PS4 Pro sparkle. The TiVo and K8500 do not. The Xbox does not. The PC sparkles if set to 4:2:2 or 4:4:4, but not at 4:2:0.
The Roku Ultra only sparkles when set to output to a UHD HDR display. If set to output just as UHD, then it does not.
Last edited by JaremyP; 11-14-2016 at 11:54 AM.