Macbook Pro External Monitor Keeps flickering every few seconds
I have a 13" MBP of June, 2012 model, and use moshi Mini Display/Thunderbolt to HDMI adapter to connect to an ACER LCD monitor.
The external monitor worked fine until one day, the monitor started flickering every a few seconds and some times every a few minutes.
I tried it with both lid closed, lid open, or Mirror and non-Mirror, the same problem. Sometimes the flicker is shorter - almost like a blink; sometimes, the flicker is longer - a complete blackout and then 1 or 2 second later come back.
What should I do? What could have caused it? Thanks!
MacBook Pro, Mac OS X (10.7.4)