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Paper Tape
Posts: 1
Registered: ‎08-07-2014
Location: Poland
Views: 850
Message 1 of 2

T440s – no DDC\CI communication with monitor


I am trying to calibrate my Nec monitor connected by displayport using SpectraView software. I have a problem with DDC\CI communication. No matter what connection I am trying (DP on notebook or DVI, DP, VGA in ultradock) I am getting no communication over DDC\CI message in SpectraView and NaViSet software. It looks like a problem with Intel HD driver. I’ve tried latest stable Intel driver ( and drivers from Lenovo ( under Windows 8.1 pro (64bits) without a success.

Any ideas how to solve that?

Fanfold Paper
Posts: 8
Registered: ‎07-24-2017
Location: US
Views: 487
Message 2 of 2

Re: T440s – no DDC\CI communication with monitor

Did you ever get DDC/CI working?


I have a similar problem with my T470p and an UltraDock, no DDC/CI to NEC monitor, no SpectraView calibration, but the built in MiniDP port on the notebook works fine.

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