QUOTE(boniek @ May 4 2011, 06:03 PM)
Sorry for my English. I've made a homemade VGA cable (I used good quality standard VGA-VGA cable and plug from non-original Xbox 360 VGA cable).
I soldered all points and got very good picture quality without any ghosting (just perfect).
One problem is level of brightness (picture is dark!) - it's about 60-70% of brightness of original VGA cable. I connected all ground points going from cable into one ground point in plug (metal shelding). Maybe this is the issue? Should I connect all ground points to the coresponding data points (I mean RED, BLUE, GREEN and H,V-sync have their own GND but I soldered all grounds together).
Thanks for all answers!
just put a multimeter on those ground points, and you see that there is continuity between all those ground points. so no need to connect to their respective points, since they all have a common shared ground. same as all the screw holes, they are all shared ground points. so save yourself the trouble of doing that, and just use one common ground. you can always try another ground point (preferably take one outside the av connector plug, so connect it directly to the metal casing. perhaps the av plug you are using is of a low(er) quality (i doubt that, but you can try it anyways). also check the data pins and ground pins for continuity, maybe there is a short somewhere.