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Will 2015 MBA work with LG ultrawide monitors?


macrumors 6502
Original poster
Nov 18, 2010
I have a 2015 13" MacBook Air with 2.2GHz CPU running MacOS Sierra. I also have a Thunderbolt Display (at 2560x1440), but I would like to get a new LG ultrawide monitor. Apple's webpage for the MacBook Air says:

Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on an external display, both at millions of colors

So does that mean my MacBook Air can drive either of these LG monitors? If so, what video adapters would I need (for HDMI 2.0 and DisplayPort)?

LG 34UC98-W (3440x1440 via Thunderbolt 2, HDMI 2.0, DisplayPort)
LG 38UC99-W (3840x1600 via HDMI 2.0, DisplayPort)

Thanks for any help.
Last edited:


macrumors member
Nov 25, 2009
I would expect it would support either of those monitors, as the resolution of either is less than the max stated resolution the Air supports. But I think I saw a review of the ultra wide on Macrumors a couple weeks ago, so maybe check that out, as well as other Mac-centric reviews.


macrumors 68020
Apr 23, 2010
Can you get to an Apple Store and ask to have a 2015 MBA connected to a similar monitor? Then, get either the appropriate cable or adapters (TB to HDMI, TB to Displayport) from someplace like monoprice.


macrumors member
Oct 18, 2016
I believe(that means maybe) that if you go over 1080p or slightly more than 1080 that refresh drops to 30 frames per second(from 60). Don't bother some, but bothers the hell out of me. That problem would not be applicable to static images, for the most part. I went 1080p myself on a 27" viewsonic, looks great. Some moan that screens over a 24" size needs higher res than 1080p, I'm not one of them. Of course your purposes are to be at the forefront of the decision.

...or not

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