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Change The External Monitor Back To It's Default Resolution

E

EDLIU

macrumors regular
Original poster
Oct 20, 2015
238
8
I have a 17-inch, Mid-2010 MacBook Pro connected to a 32", 2560X1440 Samsung display.

I accidentally changed the external display's resolution to 1080p in the System Preferences. I do not know how to change it back to the default 2560X1440.

The Resolution: default for display does not work. Resolution: scaled only shows 1080p.

I reset the NVRAM and SMC.

The System Preferences -> Displays -> Display Resolution: Scaled, showed 2560X1440, and 1080p.

I selected 2560X1440 but nothing changed. And the 2560X1440 and 1080p in Resolution: Scaled disappear.

So, how can I set the resolution to it's default 2560X1440?

Thanks in advance.
 
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