On Wed, 09 Feb 2005 13:09:08 +0000 Neil Bird <[EMAIL PROTECTED]> wrote: . . . On a side note (if anyone's still reading this :-) ): anyone using an RGB->S-Video converter? The one I've got *works*, but the output is pretty pants; everything's *far* too bright/colourful, and fiddling with ivtv's settings can't really fix it again as too much info.'s been lost in the high brightness. Beginning to think I'll be better off using composite video ... --- end quote --- Neil, it sounds to me like a lack-of-termination problem. Does the converter have a switch to enable termination on the rgb signals -- a switch labeled "Hi-Z" or "Bridging" vs. "75 ohm" or "Term", perhaps? If so, the switch should be in the 75 ohm or term position. Does it have two high-density 15-pin VGA connectors, an In and an Out? If so, it's probably designed to bridge (sample the video lines without loading them) -- the signal may look normal when you connect a monitor to the VGA Out connector. Explanation: video signals require transmission lines that are terminated in their characteristic impedance at both the driving and the receiving end to prevent the signal from reflecting off the impedance mismatch and creating echos or ghosts in the picture. A monitor has terminators in it. If your converter is in Bridging mode it does not have line terminating resistors connected. This causes the video signals to be too "hot" because the signal levels are too high, resulting in that too-bright, washed-out condition you describe. Hope this helps, Bob
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