I am somewhat perplexed, and trying to separate issues to get to the core problem
I just bought a Xeon Server from Dell.
It came equipped with NVidia RTX Quadro 4000 display card.
I bought the Club-3d CAC-1085 and the Club-3d Ultra High speed HDMI 10k 120hz 2 meter cabling based upon recommendations from several web posters. The CAC-1085 even shows the NVIDIA RTX Quadro 4000 as one of their tested and approved cards on its box.
All of this expensive hardware is to work on a Samsung Q900 8k monitoring system.
The NVIDIA card will get 4k, 3840×2160@60fps as part of my drop down menu for resolutions.
My desktop for the Xeon machine, shows on the Samsung Q900 but at 4k resolution.
The NVIDIA is using 456.38 firmware. (This is the most recent version available according to NVIDIA).
The CAC-1085 has been upgraded to firmware version 1.03 .
Here is one of my BIG concern– The ONE CONNECTION BOX that comes with the Samsung Q900.
In this YouTube video, Vincent Teoh, or @Vincent_Teoh, of ”HDTV Test“ Feb 17, 2019, has mentioned the First GEN Q900’s One Connection BOX does NOT Accurately Support HDMI 2.1 He claims Samsung Q950R have a One Connect Box that does support HDMI 2.1 at 8k resolution and 60 fps frame rates. He said this at 3:55 to 4:01 on the Video.
Here is the link: https://www.youtube.com/watch?v=j8kK29l5InE
>>>HAS anyone been successful using the Samsung Q900r at 8k (7680 x 4320) @ 60 FPS???<<<
Please respond and tell me how you are doing it?