I just got this monitor, http://www.amazon.com/Seiki-SE39UY04-39-Inch-Ultra-120Hz/dp/B00DOPGO2G

When I plug it into my MBP's HDMI port, the highest resolution I can choose on it under the "scaled" option is 1080p. Why is this? I've upgraded OSX to 10.9.3 but it has not helped me at all. Any ideas? I've also tried using a thunderbolt to hdmi adapter but that didn't work either.


2 Answers 2


Straight from the Apple Spec Sheet for that model:

Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, at millions of colors

Looks like that model does not support 4K displays


Holding the Option key while clicking on Scaled should show you all the options for that display.

  • Looks like this model doesn't support 4k then, it just lists smaller resolutions. Jun 11, 2014 at 17:09
  • what is the biggest you see
    – Ruskes
    Jun 11, 2014 at 17:28

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