2 Replies Latest reply: Nov 25, 2012 1:44 PM by den.thed
ac1981 Level 1 Level 1 (0 points)

Hi there,


I have a Philips monitor as a second display for my iMac. Whenever I plug in my printer to one of the iMac's USB ports (haven't sorted out a wireless connection yet), the second display automatically dismounts. To get it back I have to unplug the printer, then disconnect and reconnect the mini-display port connector for the second monitor.


Any ideas why this would happen? Can't think it's a power issue as both the printer and the monitor have their own power, and this doesn't happen when I plug in flash drives and other devices using the USB ports.


Any help with this annoying problem would be much appreciated!


iMac (21.5-inch Late 2009), OS X Mountain Lion (10.8.2)