Mac Pro (Late 2013) Dual monitors freeze on startup?

You know, my fear of taking the unit to the Apple store is them saying "send it back to Apple for a replacement". Other people on different threads have said what you mentioned, even their replacement units have the same issue!!

I made a secondary administration account with no extra software and the same thing happens. And again mine did this out of the box so it cant be blamed on anything extra that I installed.

Turning the monitor off just came to me yesterday! At least it works.

Same here, I can't give up my machine as there is much work to do and that's my income. I'm wagering most of the people that own these machines use them professionally so Apple need to get this fixed.

Could be a TB power issue when using 2 displays and 1 of the displays is attached to a TB port, because the unit boots when the display is off thus not using the TB port/bus until needed!!

I don't know, that's nothing more than me thinking aloud. I should probably stop now before someone gets hurt!

I don't think its a TB power issue. I've tried lots of different combinations of devices connected to the TB ports and everything is good until two monitors are connected.

that's a good point, I'm running audio cards and HD's on the TB ports and they are functioning without issue.

Apple Engineering has been working on my issues for over 2 months without any success. What can these self claimed geniuses help you by keeping your computers for a week?

The whole thing just doesn't add up.....

Well, they're not having my unit for a week!

I wonder if this issue happens with 2 Apple Thunderbolt displays?

Well my computer can hardly boot one thunderbolt monitor let alone 2. I'm leaving my Mac Pro with them so this issue can be officially documented, plus I'm done with experimenting with brand new high end computer.

How do we get this issue on Mac Rumors or another Apple News site so we can get the folks at Apple look into this immediately?

I don't know, but you can count on my support if anyone pushes this issue to a mainstream audience.

There are threads on Mac Rumors already.

Oh well! Maybe I'll be able to run dual monitors without a problem on the iPhone 6!! Ha.