My iMac has a mini display port. From it I'm running a mDP cable to a 27" Dell 4K LCD.
The monitor does not detect any signal whatsoever, it just goes into power save mode. I've tried connecting, reconnecting, restarting, on/off, etc. No picture. I've also tried a mDP to DP cable that came with the monitor and that doesn't work either. I know the input works...I've connected my MacBook Pro to it and it displays fine. The monitor also works fine connected to my PC.
The iMac clearly shows a second display is connected via settings in Displays (it gives me display options for the Dell).
So...why am I not getting picture on the second monitor?
The monitor does not detect any signal whatsoever, it just goes into power save mode. I've tried connecting, reconnecting, restarting, on/off, etc. No picture. I've also tried a mDP to DP cable that came with the monitor and that doesn't work either. I know the input works...I've connected my MacBook Pro to it and it displays fine. The monitor also works fine connected to my PC.
The iMac clearly shows a second display is connected via settings in Displays (it gives me display options for the Dell).
So...why am I not getting picture on the second monitor?