jwaugh

Q: New MacPro won't start with 3 monitors

I am setting up a new MacPro (Late 2013) with 2 AMD FirePro 300 GPU

2 Apple cinema display 27 monitors (mini display port and USB cables)

1 EIZO CG277. It doesn't seem to matter if the EIZO is attached with Display port to Thunderbolt, Mini display to Dual Link DVI adapter or HDMI.

 

The machine will only start up with one monitor attached (either brand).

If a second monitor is attached the Apple logo appears and the progress bar makes 1/3 of the startup and the whole set up goes dark. Always plug only one monitor into each bus.

 

If the machine starts up with one monitor attached it will then accept the other two plugged in after start up.

Doesn't seem to matter which monitor is plugged in for startup.

 

 

EIZO shows no known compatibility problems

Ideas?

John

Posted on Aug 7, 2016 8:06 AM