Serial Number: CN-0C9VNT-74261-486-17AQ
Revision Number: A01
Computer: MacBook Air (Mid-2012)
OS: OS X Yosemite
Video Card: Intel HD Graphics 4000 1024 MB
Video Out Ports: DisplayPort (Mini connector)
Using: HDMI (monitor) to Mini DisplayPort (laptop)
Issue: When I connect my laptop to my monitor at the default resolution, it flashes between a static screen, a mirrored screen (my computer's default for external monitors) and a black screen, at irregular rates. After searching the forums a bit, I tried changing the monitor's resolution to 720p which stopped the flashing. This however makes all of my windows on the monitor entirely too large and my menu half-disappear off the top of the screen -- not really a solution. I saw no improvement after restoring to factory defaults, trying the self-test, nor irregularities in the screen upon performing the built-in diagnostic. I've tried numerous times to unplug, replug, restart -- none of these things help.
Do I have a defective monitor or is there something else I can try?