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RE: UHD Monitors

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15-10-2015 at 09:25 #2821
Paul
Member

Hi,
Did you reset the MST Hub? There is a button on the back.
Check if you have applied the latest updates
Check this faq from Microsoft

How many screens can I connect? 

The number of external screens that your Surface Pro 2, Surface Pro 3, or Surface 3 will support depends on your settings for refresh rate and resolution, and on whether the display on your Surface is on or off. For Surface Pro 3, it also depends on which processor you have (i7, i5, or i3). 

Surface
Surface display
External displays
Refresh rate
Screen resolution
Surface 3
On
One
30 Hz
3840 x 2160
Surface 3
On
One
60 Hz
2560 x 1600
Surface Pro 2, or Surface Pro 3 with any processor 
On
One
60 Hz
Up to 3840 x 2160 
Surface Pro 2, or Surface Pro 3 with any processor 
On
One
24 Hz
Up to 4096 x 2160 
Surface Pro 2, or Surface Pro 3 with i7 or i5 processor 
On
Two 
60 Hz
Up to 2560 x 1440
Surface Pro 2, or Surface Pro 3 with i7 or i5 processor 
On
Two 
30 Hz
Up to 3840 x 2160 
Surface Pro 2, or Surface Pro 3 with i7 or i5 processor 
Off 
Three 
60 Hz
Up to 1920 x 1200
Surface Pro 3 with i3 processor
On
Two
60 Hz
Up to 1920 x 1200