Originally Posted by Breen Lyden
I tried a Monoprice Luxe Series Active High Speed HDMI Cable - [email protected]
18Gbps HDR 28AWG YCbCr 4:4:4 CL3 30ft no picture at all when the Sony projector is on enhanced mode. When I unplug the Sony 695es after changing it to standard HDMI format still no picture for new and old cable. I have to restore the MX170 to get any kind of picture. Also, double checked that the cable is running in the right direction. It seems like the MX170 isn’t playing nice with Sony’s enhanced HDMI AT ALL. I think I’m still getting the best picture with 4K 10bit HDR 30hz with 4:2:0. The Sony says its passing this on standard HDMI format. That’s the highest specs for most 4k movies right? I think the only problem I have is HDR video games with 60hz which requires a higher bandwidth.
Breen, I had the same problem with the Monoprice Luxe. I was told it is a known problem with the Luxe chipset which they have removed from the market (or should have).
I replaced the cable with a Monoprice DynamicView Active High Speed HDMI Cable 4K HDR 18Gbps 24AWG CL2 which displays 4k 4:4:4 8-bit and 4:2:2 10-bit properly.
It appears that the Audioquest Coca Cola is a hybrid/optical solution. It could be that the McIntosh doesn't supply enough power to the Coca Cola (these often have an external power supply for this circumstance). I suggest purchasing a DynamicView to try.
Originally Posted by cn256
Hi Breen, I was wondering, why in both cases of cables are you trying active cables? I mean the "active" means that they will modify the original signal, versus passive that would transmit the signal unaltered. I'm not saying that HDMI is the culprit, but I think it is uncommon to use an active cable, and it might help to at least try a passive cable?
Do you have a description of what Sony enhanced HDMI does differently?
No, active means that the signal is amplified (or transcoded in the case of optical) for longer runs. This is common for anyone utilizing a projector. A good passive cable can transmit 18Gbps for 5m but not 10m.
Sony STD is ≤10.2Gbps which can support up to 12-bit HDR only up to 30FPS. 60FPS (gaming, live sports, Youtube, etc.) requires Enhanced, which is anything >10.2Gbps.