I don't see why this user shouldn't be frustrated, though. It is still an OS-specific limitation, since it appears that Windows will run them in a manner acceptable to the user.

OS X generally has terrible 3D support and the same hardware on Windows will perform much better. That's unfortunate but no reason to go to court for.

Apple writes their own device drivers and they write them to the extend their software and hardware needs it and no step further.

It seems to be intentional though. I seem to recall Microsoft and IBM got into big trouble for anti-competitive conduct. This is the sort of thing that brings about anti-trust suits.

Anti-trust on their whopping < 8% marketshare? You'd get laughed out of court.

All this because osx doesn't do a thing that apple never claimed osx did.

http://en.wikipedia.org/wiki/Usage_share_of_operating_system...

It seems intentional in a "it would cost resources to extend this past what we benefit" way. In other words, a business made a cost-benefit analysis.

I fail to see where your frustration is coming from, or why it's targeted at Apple. It's most likely just a calculated cost savings measure.

The frustration is targeted at Apple, because someone there likely made this decision... The support was likely already written, and expressly removed, because Apple makes Thunderbolt monitors. Not to mention that Apple is known for it's wide profit margin, so any cost/benefit analysis is less meaningful in that regard.

I'm not sure where you think said frustration should be directed.

Rather than speculating on what Apple did internally, I think the real question is whether Apple advertises DisplayPort 1.2 support, since this feature is part of the DP 1.2 spec. So far I can't find anything about this on their product pages. If that's the case it's basically users demanding features that were never put into the specs of a product.

Then Apple is in trouble:

Mini DisplayPort Connector

The Mini DisplayPort Connector is a small form factor connector designed to fully support the VESA DisplayPort protocol. It is particularly useful on systems where space is at a premium, such as portable computers or to support multiple connectors on reduced height add-in cards.

https://developer.apple.com/softwarelicensing/agreements/min...

It doesn't say which version though.

Mini DisplayPort started from 1.2 of the DisplayPort standard.

1) It's not intentional though.

2) Apple doesn't prevent you using dual monitors via other means e.g. USB / HDMI.

3) Microsoft/IBM had ridiculously high market shares (>90%). OSX is around 10%.

I agree with some frustration, but getting upset that apples aren't oranges isn't valid.

Someone would need to write the driver for this functionality. I expect Intel is happy letting apple do the work, but so long as that is the case, Apple has no need to support every hardware and protocol under the sun. They merely have to support their stuff fully, and beyond that it is someone else's problem.

Intel wrote the driver for windows, and it works on Windows. That's also apples and oranges IMO.

It's also a 2560x1440 screen sold for $999. An upgrade with their latest 5K display is overdue.

I just recently bought a couple of Dell U2515H monitors (and will probably buy another), and, given you can buy three of them for the cost of one of Apple's Thunderbolt displays, they really are a great deal - same resolution, higher PPI, more adjustable and rotatable, and they're matte.

My Apple Thunderbolt display has from day one had some light leakage in the lower right corner, and the ethernet port stopped working six months ago, but I'd always convinced myself it was worth the extra money over a Dell or equivalent. I'm now pretty sure it never really was apart from a brief period when they were about the only 2560x1440 displays you could get.

I hate to say this, but the U2414H is a better monitor. Zero processing latency (not 1 frame, not half of a frame, but real world measured latency of less than 1 ms; virtually all of the gamer monitors out there are at least 1 frame and the only ones that get <half a frame are those Korean single input scaler-less IPSes), often sold for below $250 each, excellent color and contrast.

I have three on my desk.

It's 1920x1080, though, right? The U2515H is 2560x1440. That difference is far more important to me than a few milliseconds of latency (I don't play games).

Yes, but they're also often for sale for around $250. I bought three.

I got an U2515H at work last week (for use with my MBP) and am amazed at the effect it's had on my working patterns in such a short space of time. Simply being able to have documentation, browser and editor open at once and not feel 'cramped' is amazing.