Acer B326HK 4k display and 60Hz

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i purchased acer 32" 4k b326hk display macbook pro 2013 (retina, nvidia gt650m, 10.10.1). nice monitor, connected via mini dp or dp 4k mode works in 30hz. display capable of 60hz @ 4k.

use display mac hardware? not find or evidence of it.

seems may not correctly detected osx. interestingly, display tab of system information reports wrong monitor display physical size , resolution, system report though shows 3840 x 2160 @ 30 hz , there no option 60hz. tried connecting using hdmi, there showed 60hz @ 4k option nothing show on monitor itself.

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thinking tinkering switchresx , create custom resolution. before "dangerous" game wanted see if has figured out.
 

you have go monitors menu , enable dp 1.2 able 60hz.

edit: i'm not sure if 2013 model able support 4k/60hz. think earliest mbp support late 2013 15".
 


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