Posted 28 December 2012 - 09:29 PM
It was the new monitor power cord.
This new cord was defective. When a monitor is powerer up, the self adjust screen floats. Attach the VGA cord to the monitor AND the computer--monitor goes into sleep mode--no floating panel. When monitor has power from wall AND from computer, it goes to sleep mode(orange light). Turn on computer, monitor has green light. Power MUST come from sleeping computer through VGA port to put monitor to sleep. If no power from a sleeping computer reaches monitor, the self-adjust screen floats and monitor light stays green. If you change cords and the green monitor light turns to orange, the other cord is defective. When computer is turned on, the monitor light will turn to green on a sleeping monitor and stay green on an awake monitor.
We know the port on computer is receiving power by this test. I'll wager that every desktop computer in the world (I don't know about all-in-ones)puts it's monitor to sleep by sending battery voltage through the port. This battery is the control.If a blue tint is on monitor screen when powered up, a connection is not tight. Just touching both VGA ports with the cords ports puts a monitor to sleep if the computer is asleep. Aki