Originally Posted by Ken H
For one, the 1920x1080 STB output is interlaced. The 1920x1080 PC output would normally be progressive.
You can in may cases configure PC video output for use with a standard HDTV. For 1920x1080i set the scan mode to interlaced and the frame rate per second to 29.97 or 30.
Or, try 1920x1080p (progressive) at 23.976, 24, 29.97, 30 fps.
Most current HDTV's will automatically accept PC video formats, but most PC monitors will not accept HD video formats.
And, PC video does not use HDCP. Video formats over DVI or HDMI do.
I tried four different units with the SA 4200. One was a Samsung 2333HD with DVI and HDMI and 1920 x 1080HD resolution. I don't recall if they claimed HDCP for the DVI, but calling their tech support could not get anyone who knew anything about HD connectivity beyond how to plug a plug in.
The second was an eMachines E211H which was 1920 x 1080 HD with DVI, but doesn't say anything about HDCP and again there was no ability to discuss with tech support.
The third was an Acer X223HBD with DVI which stated HDCP and 1920 x 1080 HD.
The last was Acer H233H BMID which has DVI with HDCP, HDMI and 1920 x 1080 HD. All four can produce picture with 1920 x 1080 output from the PC. None of the four could produce a picture with dvi to dvi connection from SA4200 STB (set at 1080i). The Samsung and H233H also have HDMI and could produce pictures with DVI (STB) to HDMI (monitor) connection.
A switch to a SA4250 which has HDMI Connector instead of DVI on the 4200 gave no picture on any monitor with an HDMI (STB) to DVI (monitor) connection, but did give picture with HDMI to HDMI on the two that could accept it.
Lastly, DVI out from Panasonic DVD recorder to DVI on H233H works.
So the problem seems to be getting an HD signal from Cablevision to a DVI input. Is it possible that there is something in the signal from Cablevision that is causing this or is it only the Scientific Atlanta box that could be at fault.
Cablevision claims that DVI on 4200 works and there should not be any issue but has no one with enough tech knowledge beyond that and blames everything on video vendor.
None of the monitors give you options for setting resolution or refresh rates; they only play what is provided.