2016 MacBook Pro 15, 10.12.5 update graphics issue

Discussion in 'MacBook Pro' started by Zigman, May 22, 2017.

  1. Zigman macrumors member

    Dec 9, 2012
    Hey All,

    I am having some serious graphics issues while on Intel graphics with the latest 10.12.5 update. I have the i7 2.9 with AMD 460 graphics.

    I think I screwed up by updating the computers while plugged into the 5K LG display. It runs fine when on the AMD graphics, but when on Intel all Mac apps have weird pixelated artifacts.

    Also, when installing the update I had to do a hard shut down mid-way through the process (when the update rebooted the machine). Anyone else having this issue?

    WORD OF WARNING, do not install the latest update when connected to the LG Thunderbolt Display.
  2. Dotwood, May 23, 2017
    Last edited: May 23, 2017

    Dotwood macrumors newbie

    May 23, 2017
    Same here..

    I chose to do a re-install/recovery of macOS using cmd+R on start-up. My login screen also went black (while logging into my user account) except for showing the progress bar.

    Mine was connected to a LG 38UC99.

    - edit -

    After re-install mine is running fine on 10.12.5.
  3. Zigman thread starter macrumors member

    Dec 9, 2012

    Thanks Dotwood, the re-install using cmd+R fixed mine as well. I did disconnect from the LG monitor this time around.
  4. scott_donald macrumors regular

    Nov 2, 2016
    ahhh I was updating on 2 LG monitors and had some weird things happen since...

    may try this... thanks...
  5. Jaekae macrumors 6502a

    Dec 4, 2012
    Always disconnect everything when updating, only powercable attatched
  6. scott_donald macrumors regular

    Nov 2, 2016

    just did a nice fresh install...

    all seems great...

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