Originally Posted by kbyakko
It works with 1080p signals. I have two mCables with one connected to a 1080p display with a Roku sending a 1080p signal. It is a 2008 Samsung model tv. It is connected to the Roku with a female-female HDMI coupler. I have the ultra mCable model same as you. That stinks that it just gives you a blank screen when you play 1080p content.
I have an update:
Late yesterday, I got a response from Marseille tech dept. They indicated that the mCable will indeed work with 1080p displays and automatically
output the correct 1080p resolution. However, they also mentioned some specific parameters that effect "compatibility" (their vernacular).
For DTV, the display "settings" box for 1080i should be unchecked. This will have the DTV receiver down-res the 1080i signals to 720p (which the mCable can process).
For Blu-ray, the 1080p output from the player will be processed, but remain unchanged.
For Roku, it sounds as if there are compatibility "issues". The tech indicated to me that if the Roku is set to output 1080p, then it will upscale all HD sources to 1080p. Apparently this does not sit well with the mCable, as it works best with "native" resolutions. I sent another email inquiring about this, but they have not had time to respond.
So, I unpacked my mCable Ultra and hooked it up again. After some further experimentation, it appears that the Darbee "shields" the mCable from "reading" the 1080p display's "native" resolution. In order to get a more consistent output, the Darbee must be before
the mCable in the 1080p chain. However, I was still experiencing some sort of "sync issue with some Blu-ray content, leading to a blank screen. I could pause and restart the player and get a picture again. I have no idea if this is a wide spread phenomena or a one of (with this disc). My guess is that the mCable was designed to work by itself. The Darbee introduces another device (and cable) into the HDMI chain. HDMI sync issues are widespread already. The extra connections probably do not always play well together. Thoughts?
Also, those of you with a Darbee and a 1080p display, please see if you can verify that having the Darbee before the mCable effectively disables
the Darbee? That is, with the Darbee after the mCable, it "works" some
of the time. With the Darbee before the mCable, the image displays consistently, but I could get no perceptible Darbee change in the image itself. I tried the Darbee "test" images, and even in split screen, I could see no change...
The bottom line is: For me, with our 1080p display, the two do not appear to play well together. If the mCable is used by itself, you can see a consistent 1080p image. It is indeed upscaled and subjectively "smoother" and perhaps more saturated. By itself (no mCable), the Darbee effect seems to add sharpness and contrast, but you are then watching some 720p HD images. Take your pick. To me, the Darbee alone seems like the way to go. YRMV.
I'm interested in other's findings. Is anyone else out there using a Darbee/mCable/1080p display combination? IF so, have you experimented with the order and input settings? Please post your findings.
kbyakko, you mentioned using the mCable Ultra with your Roku. Do you have a Darbee in the chain? How do you have the Roku set up to output? Do you get a consistent response from say Netflix and Amazon videos on your 1080p set?