So I have picked up the dell monitor (UP3216Q). Its a great monitor. However when I hold the alt key to bring up the boot menu on my mac pro, it just goes into sleep mode and does not display anything. I can hit enter (blindly) and it will load mac, or I can hit the arrow to the right and then enter and it will boot windows. I can't see anything tho. When I use the HDMI cable its the same thing. When I plug my thunderbolt monitor in though it works perfectly.
What is the issue here?
What is the issue here?