Q: Why is the second display flashing off and on?
Second display is a 24 inch Cinema LED display. I have tried restarting & zapping PRAM, but the flashing continues. After about 5 minutes it appears stable again but I don't know why. This has happened before, many months ago, and similarly stabilized until now. Thanks.
MacBook Pro, Mac OS X (10.7.5)
Posted on May 23, 2013 12:08 PM
I seem to have fixed the problem, running several days now for long periods of time with no bliinking of the Cinema Display.
Here's what I did:
Carefully cleaned the contacts in the video output port of the MPB, and the connector to the Cinema Display.
Went back to using the MPB power cord, and not the power connection from the Cinema Display. When I went back to the power connector from the display, the blinking returned.
I have some thoughts about why I was successful, but since I'm not an electronics engineer, I'll spare you.
Harvey
Posted on Oct 11, 2013 1:22 PM
