B286HK and New Macbook

markrtallman
markrtallman Member Posts: 3 New User
in 2015 Archives

My B286HK worked perfectly with my early 2103 Macbook Pro.  I now have a new Macbook with their 3-way adaoter that supports HDMI.  Now the monitory flickers on an off.  Any ideas?

Answers

  • -Justin
    -Justin Member Posts: 2,362 Skilled Specialist WiFi Icon

    markrtallman,

     

    An early 2103 Macbook Pro huh? It sounds like you have came into the past and purchased a 2015 one to see if it worked any better than one from the future? Smiley LOL Just kidding! Smiley LOL

     

    The new Macbook uses the USB-C connection, if I am not mistaken? Are you using the USB-C Digital AV Multiport Adapter?

     

    What resolution are you trying to push to the monitor, that maximum resolution is 3840x2160 @ 60Hz.

  • markrtallman
    markrtallman Member Posts: 3 New User

    Yes, I am  using the 3-day USB-C adapter with HDMI; digital.  I have subsequently resolved the 9ssue.  Apple only supports 5 UHD displays, all of which have ability to turn on MST, which Apple requires for UHD.

     

    First, every time I changed a monitor setting, I did a PRAM start on the Mac so it would get a fresh look at the monitor.  The settings to make this owrk sis DP 1.2 and ACM ON.  I do now know if this is an Easter Egg that turned on MST or if it merely fools the Mac into thinking MST is ON.  When I did this after the PRAM start, I had the speed settings in Display Settings.  I set it to 24hz.  The display now works flawlessly, which richer color and MUCH high resolution at the highest resolutioon.

  • markrtallman
    markrtallman Member Posts: 3 New User

    By the way, the default speed was 30hz.  Only 24hz was available.  60hz was not an option.

  • -Justin
    -Justin Member Posts: 2,362 Skilled Specialist WiFi Icon

    markrtallman,

     

    Glad you got it working right.

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