Originally Posted by Haacksta
I purchased this Monoprice SlimRun AV Dynamic HDR Ultra High Speed HDMI Cable - [email protected], Dynamic HDR, 48Gbps, Fiber Optic, eARC, AOC, YCbCr 4:4:4, 20ft, Black
. Partially routed it through part of my wall and decided I should test it before I fully commit and put it the rest of the way in. I am replacing my older HDMI and hoping that I will be safe in the future from having to route another cable. This is the second step in my plan to eventually get a Sony VPL-VW295ES projector, I currently have a Sony VPL-HW45ES. The first step was to replace my Pioneer Elite SC-35 receiver with a Yamaha RX-A1080.
I know an HDMI 2.1 cable is excessive, I just don't want to have to worry about this ever again. Since there aren't many long, reliable cables available I was limited and couldn't get an in-wall rated cable. That's beside the point. When I plugged the cable in to my Yamaha and projector, it displayed for a second and then went black. I tried different output ports from the Yamaha and it didn't seem to make a difference. Additionally I tried different sources(Xbox One X, Playstation 4) and that didn't seem to matter. I also tried moving the cable around to see if it was kinked somewhere along the line. From what I understand these newer cables should be backwards compatible. Should I try a different 48Gbps cable(Ruipro was the other one I was looking at)? Do I need to give up my future-proofing dreams? Or is it just a matter of changing some settings in my equipment?
No such thing, yet, as a cable that has been fully tested and certified for HDMI 2.1 (48Gbps). Partly because there aren't any consumer devices (new HDMI 2.1 chipsets) that can one, transmit data at 48Gbps and two, there is no consumer source material available that needs that bandwidth. The ONLY way to future proof your cabling is to install it in a 1.5" - 2.0" conduit because you will be upgrading your cabling down the road. Video technology will always outpace connection technology so easy access to your cabling is basically required now. The most reliable connection will be source to sink, with no wall plates, extenders, adapters, etc in-between. And be mindful of bend radius. Hybrid fiber cables have an excellent bend radius but you still need to be aware of sharp 90 degree bends.
Backwards compatibility just means that the newer cables which have been certified for the HDMI 2.0 option sets will work with previous versions of HDMI protocols. However, you will be limited to the in-common protocols. In other words, an HDMI 2.0 device sending data to an HDMI 1.4 device will only be able to utilize the protocols that are available to HDMI 1.4. The cable is just the data pipe. It can not alter or modify the pq in any way. You can't make greens any greener or reds any redder. Most all consumer devices have HDMI 2.0 chipsets in them, which is standardized around 18Gbps. Even if you had a cable that could actually transmit data at 48Gbps, the chipsets will only process at 18Gpbs.
Projectors, at least some, have issues with active cables due to the inconsistent power output and the sink end which can have an adverse effect on the connector end chipsets. Some of the issues have been mitigated with the use of a voltage inserter but nothing is guaranteed.
As far as fiber cables go, what you want to look for are hybrid fiber optical cables (Ruipro4k). I have been testing short length Ruipro4k cables for a few months now and they work perfectly for all of the HDMI 2.0 options sets (4k HDR) and HD Audio (Dolby TrueHD, DTS-MA, DD+, etc). I don't use or need ARC/eARC but I do know for a fact that the Ruipro4k cable work fine for that as well. The only drawback, and this is true for any cable, is that ARC/eARC can have issues a long lengths.
No cable is guaranteed to work 100% of the time for any given setup so it may be trial and error so you need to plan accordingly and look at your cable length and how it will be installed to give you best chances for success.