I use the mini DP port to connect to a external display(not apple's). After it's connected through the mini DP port, it just won't start mac OS. Then I unplugged it, mac OS starts up. And then when it's running with the mac OS fine, I plugged in the mini DP again, my mac Book prompts to restart the computer! The external display just stays black screen, unidentified..
Anf if it's with WIN7 OS, although it can enter into the system(OS), and displays normally. But, if mini DP is plugged in, then it will take 40s to wake up the computer from sleeping, normally it taks 10s.
CPU：Intel core i5-2435M
Graphics card：Intel HD Graphics Family
Any insights or advice is appreciated!!
pls note:there's no adapters used here, pure mini DP connection.
Anf if it's with WIN7 OS, although it can enter into the system(OS), and displays normally. But, if mini DP is plugged in, then it will take 40s to wake up the computer from sleeping, normally it taks 10s.
CPU：Intel core i5-2435M
Graphics card：Intel HD Graphics Family
Any insights or advice is appreciated!!
pls note:there's no adapters used here, pure mini DP connection.