9 Replies Latest reply on Aug 11, 2017 2:52 PM by Intel Corporation

    Intel HD 620 not supporting HDMI 2.0a?


      Hi there,

      maybe someone here can help me...



      I'm on a laptop:

      * Razer Blade Stealth 2016

      * Windows 10 64-bit

      * Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz

      * Intel(R) HD Graphics 620 (driver version

      * HDMI 2.0a


      trying to connect to external display Iiyama XB2779Q:

      * 2560 x 1440 @60Hz via DVI-D or DisplayPort


      using different HDMI-DVI adapter cables wich seem to work fine for other people.



      Via Intel Graphics Settings, I can create custom resolutions, e.g.:

      * 2560 x 1440 @30Hz GTF

      - unfortunately, the display is not compatible with 30Hz, so this does not work.


      When I try to select the custom resolution

      * 2560 x 1440 @60Hz GTF

      - the message I get from the Intel application reads "the custom resolution exceeds the maximum bandwidth capacity" and won't let me save it.


      I have tried various combinations of refresh rates and timing standards, but either the required bandwidth is "too high" (and I can't create the setting), or the frequency is too low (and my display won't accept it).



      In principle:

      * HDMI 2.0a should be able to transport the required bandwidth

      * Intel HD620 should be able to work with HDMI 2.0(a) (via some LS-Pcon workaround that is mentioned in the datasheet)

      * the HDMI-DVI adapter cable should be able to transport / translate the required bandwidth (it's doing so for other people / systems)

      * the display should support 2560 x 1440 @60Hz



      So, what am I missing?


      I've already tried various versions of the Intel drivers, but maybe not the correct ones...?


      Help, please...