Monitor 3: driven via USB 3.0 adapter (I used this one from CableMatters and have had zero issues with flicker/performance, although I am not trying to play games or watch video on it.I use it for work).Monitor 2: driven by Mac Mini thunderbolt port (I used this thunderbolt-to-DVI cable).Monitor 1: driven by Mac mini HDMI port (HDMI-to-HDMI cable).3 monitors, each with 1920x1200 resolution.Late 2014 Mac Mini with 8GB RAM (purchased Oct 2015).The following 3-monitor setup worked for me:

I've confirmed this by trying to plug in 3 monitors directly into the ports on the Mac Mini (two via thunderbolt, 1 via HDMI), with the same results as the OP.one of the monitors is not driven. Rather pleased how it all worked out, and the picture is somewhat crisper than via the VGA connection.Apple's specs show that the late-2014 (which is still being sold today, October 2015) Mac Mini can support up to two displays using its HDMI and thunderbolt ports. Within a couple of minutes the mini and Samsung were working in harmony!! After a little reading, I set the mini to allow Apple Remote Access in the preferences, and installed Chicken VNC on the Macbook. The internet searches suggested a VNC connection from another computer.

So the mini and cable were OK (bless cheap cables).īack to the new TV and how to get around the problem of how to detect and change screen settings from a blank screen. I moved the mini over to another Samsung TV we have in the house (had it a couple of years), plugged it in, and bingo! I had a picture. An internet search provided results suggesting the mini screen resolution needed to be changed to match the TV, so lots of switching between VGA and DVI ensued, all fruitless - still a black screen. The TV acknowledged that the mini was attached but provided a message stating to check connection and settings. I set the TV to “PC DVI” mode in accordance with the instructions, but unfortunately I sat looking at a black screen. Well, I bought a HDMI to DVI cable from Amazon (cost £5), and plugged it in to the Mac mini and Samsung TV.

Dvi to hdmi not working mac mini g4 tv