Is it possible to run an external display connected to a late 2011 MacBook Air at 3840×2160@30Hz.
I realize having this resolution at 60hz exceeds the bandwidth limitation of a Thunderbolt 1 port. This is why I am asking specifically about 30hz.
Hardware: Late 2011 MBA running 10.9.3
Monitor: Samsung U28D590D, connected to MBA with Mini DP to DP cable
This isn't a duplicate question. The other related asked-and-answered questions all point out that this impossible for 4k@60hz. I am inquiring about 3840×2160@30hz specifically.
Best Answer
No, this is not possible. As Apple states, the only models capable of supporting 4k resolutions (3850x2160 UHD) at 30 or 60 Hzs are the late 2013 Mac Pros and late 2013 Macbook Pros:
In fact, this is the default configuration.
Though these two models also are capable of supporting 4k @ 60 Hz refresh, multi stream transport must be enabled on the external display.
The same applies to your Thunderbolt port. Thunderbolt 1 is not capable of driving 4K displays. Thunderbolt 2 is.