Hi! Last week I bought a new Mac mini (late 2014) and connect a monitor to the Thunderbolt port via DVI-to-minidisplayport converter. And everything works well except that I can not see anything on screen until User selection screen. As result I can not use single user mode, boot selection panel, etc. How to fix that?
Mac mini, OS X Yosemite (10.10.4), Late 2014
Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
Next call Apple. You get 90 days of free telephone support. Have the aerial number of your Mac handy when you call
Thanks. I tried to talk with Apple Support. But they recommend me to change the display. It is impossible and I thinks it is wrong solution.
I inserted my display to another one port Thunderbolt (closer to USB) and everything is ok!
Blank (black) screen during booting
