Q: Problem with multiple displays
I have added a second monitor to my iMac. The iMac seems to have difficulties recognising the second monitor when it comes out of power saving mode. Sometimes I have to restart the computer one or more times before the second screen starts to receive signal.
I am using a thunderbolt cable and the second monitor is a BenQ GW2760HS
Any suggestions?
iMac (27-inch, Late 2013), Mac OS X (10.7.5)
Posted on Sep 27, 2016 2:47 PM
Unless your external display is Thunderbolt equipped you likely have the wrong cable. Please use a Mini-Display adapter to (VGA, HDMI, etc..) into the Thunderbolt port on the computer and then connect the correct cable to it. Then follow the Apple's directions in Use multiple displays with your Mac - Apple Support
Posted on Sep 27, 2016 3:18 PM