I have a W2207h monitor that has been on both a PC and is now on a Mac Mini. It started to be intermittent so we put it aside . Now when I hooked it up it worked well for at least an hour but when I came back the screen was black. I have had it on and off, and tried different HDMI cables . Sometimes the screen will flash on for a moment then it is black again. No pattern that I could find.
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