Sony X850D not receiving a 1080p singal for 4k mastered option for the pc.

Sep 17, 2018
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I am trying to use my TV 4k mastered option for my pc, but it tells me I need a 1080p signal. Refresh rate on tv is 60Hz and so is the pc. The tv and pc are runing at 3840 x 2160 resolution. Can some one help me figure out how to use the 4k mastered option with my pc. Please and ty

Cable: HDMI Cable 6ft - HDMI 2.0 (4K @ 60Hz) Ready - 28AWG Braided Cord - High Speed 18Gbps - Gold Plated Connectors
GC:EVGA GeForce GTX 1070 Ti SC- uses 2.0b hdmi
TV:Sony XBR55X850D 55-Inch 4K Ultra HD Smart TV
 

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