I have an ACER LCD monitor connected to my iMac and when the Mac goes to sleep the ACER goes off. When the main screen wakes up the ACER stays off. Sometimes I can get it to wake up by unplugging it and then plugging it back in but that's not really an ideal solution. I've tried switching the video port I use on the computer, I tries using the other exit port on the back of the monitor, I've tried changing the cables and plugs. Nothing helps. Once the **bleep** thing gets turned back on it works fine, until the next time the computer goes to sleep mode.
Does anyone know what causes this behavior and what to do to fix it? Can it be fixed or is the monitor trash now.