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  • Registered: ‎11-01-2017
  • Location: DE
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X1 Carbon 5th generation 2 4k displays at 60hz & internal WQHD on with thunderbolt 3 dock

2017-11-01, 7:30 AM

Hello everyone,


I am new to this forum and have a problem regarding setting up 4k displays:

Equipment: Thinkpad x1 carbon 2017 (5 gen) with wqhd, thunderbolt 3 dock, 2 4k samsung displays


This is my target setup:

1. 4k display at 60 hz connected via dock at dp1 (display port)

2. 4k display at 60 hz connected via dock at dp2

(ideall: 3. x1 carbon wqhd internal display on)


My problem is that the second 4k display (a Samsung TV) did not connect when I connected it via the dock (picture shortly present, then goes away again, when trying again no picture at all). However it works (all 3 displays on) when I connect 2. via the hdmi connector directly at the laptop.


Hence: is there any way to get it working like in my target setup?


Thank you very much for your suggestions and ideas!



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