Q: Mac Mini Not Handling Two Displays
I've got a Samsung tv plugged into the HDMI of my Mac Mini (2015 model, current OS). I bought a new Dell U2751H and plugged it into the thunderbolt port. The Dell does not work correctly. It keeps blacking out and switching resolutions. It will work for about 5 seconds, then go black, then come on at a higher resolution for a "blip", then go black and then come back to the original resolution. And repeat.
I find that the Dell works fine if I unplug the HDMI. So, I think the Mini is sending a "bad" signal to the thunderbolt port when the Samsung tv is plugged into the HDMI.
I've looked at the Display option of System Preferences, but I don't see any settings that help me.
Any ideas?
I don't want to use the two displays as an extended display. I want both displays (Dell & Samsung tv) to display the same image. (I rarely use the Samsung as a display. Only when I watch videos through the Mini.)
iTunes Match, OS X Mavericks (10.9)
Posted on Jul 26, 2016 5:11 AM