Sorry to resurrect this Guy's but I'm having the strobing horizontal lines problem too, despite trying all the fixes in this thread. These lines do disappear at times but return randomly for no reason I can figure out.
I have a LinITX Plus touchscreen and a MiniItx carpc with P4 mobo and M2-ATX PSU. I use a ground loop isolator so no sound interference problems, just video.
I have tried the following:-
8 gauge grounding all round (solved a grounding interference issue, but not the horizontal lines)
Made a common ground for PC & screen ( still lines )
Powered the screen via the M2 ATX ( still lines )
Powered the screen via supplied mains adapter ( still lines )
Set the screen to 75 hertz ( thinner lines !!! )
Re-routed cables ( still lines )
I can't replace the VGA cable because on this screen it's an "all in one" solution, where it joins other cables (T/S, power, RCA inputs etc) in a moulding and bespoke connector. ( ie. one composite cable comes out of the screen)
I guess this is some sort of frequency interference coming down the VGA cable. Can Anyone help me solve this problem
