MacBook Pro :: Unable To Get Native 2560 Resolution On External Monitor

Jun 27, 2014

I have a Samsung SB970 S27B970D 27-Inch Screen LED-Lit Monitor with native resolution of 2560x1440. When I connect it to my 2012 13" MacBook Pro via mini display port to DVI, I am unable to get anything better than 1080p. 

Here's what System Information shows for my displays. Intel HD Graphics 4000:   Chipset Model: Intel HD Graphics 4000  Type: GPU  Bus: Built-In  VRAM (Total): 768 MB  Vendor: Intel (0x8086)  Device ID: 0x0166  Revision ID: 0x0009  Displays:Color LCD:  Display Type: LCD  Resolution: 2560 X 1600  Retina: Yes  Pixel Depth: 32-Bit Color (ARGB8888)  Mirror: On  Mirror Status: Hardware Mirror  Online: Yes  Built-In: Yes  Connection Type: DisplayPortS27B970:  Resolution: 1920 x 1080 @ 60 Hz  Pixel Depth: 32-Bit Color (ARGB8888)  Display Serial Number: H3HCA00500    Main Display: Yes  Mirror: On  Mirror Status: Master Mirror  Online: Yes  Rotation: Supported  Television: Yes 

As you can see, 2560 should be supported. 

Also note that we have two different MBPs and two different Samsung monitors (same model, ordered at different times) that do the same thing. 

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Here are my hardware specs:

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