LG Monitor Support

Discussion in 'macOS Sierra (10.12)' started by molokai_man, Sep 15, 2016.

  1. molokai_man macrumors newbie

    Joined:
    Sep 15, 2016
    #1
    Installed
    macOS 10.12 (16A320)

    Immediately, my LG ultrawide monitor stopped working correctly. Could not find the proper resolution, even option-clicking "scaled" revealed a limited list of resolutions.

    Had worked just fine for two years. Distortion now makes monitor nearly unusable.
     
  2. accentaudio macrumors 6502

    accentaudio

    Joined:
    Apr 4, 2012
    Location:
    Kansas City
    #2
    I've noticed similar anomalies. Like upon boot there's about a 2 second horizontal flicker near the top of my screen. This never happened until Sierra. I'm thinking Apple has changed something with external display support. I'm using a 32" BENQ. Bummer.

     
  3. molokai_man thread starter macrumors newbie

    Joined:
    Sep 15, 2016
    #3
    Agreed, bummer. This happens with my Ultrawide 25, but my LG Ultrawide 34 works perfectly, oddly. So I am dumping the 25 and buying a second 34. Cant afford to wait for Apple to figure it out.
     
  4. accentaudio macrumors 6502

    accentaudio

    Joined:
    Apr 4, 2012
    Location:
    Kansas City
    #4
    I wonder what is going on? I hope anyone having weird issues or graphical anomalies with their own external display is reporting it to Apple. I have reported my issue.
     
  5. molokai_man thread starter macrumors newbie

    Joined:
    Sep 15, 2016
    #5
    I reported mine as well. But my experience with Apple has been "don't hold your breath".

    FWIW, Samsung tech support spent 30 minutes trying to help me solve it. So kudos to them.
     
  6. accentaudio macrumors 6502

    accentaudio

    Joined:
    Apr 4, 2012
    Location:
    Kansas City
    #6
    Agreed! It's liable to be macOS 13 before there's a fix.

     
  7. DaDalle macrumors member

    Joined:
    Sep 17, 2011
    #7
    It's not just widescreen monitors. My 1440p ASUS Monitor doesn't show the native resolution with hdmi.
     
  8. scrmtrey macrumors regular

    scrmtrey

    Joined:
    Mar 28, 2013
    #8
    Maybe you need force rgb script. (Force rgb mode and maybe native resolutions).
     
  9. accentaudio macrumors 6502

    accentaudio

    Joined:
    Apr 4, 2012
    Location:
    Kansas City
    #9
    Here is what I see upon boot. Never saw this ugliness on any other version of OS X.
    IMG_0357.JPG
     
  10. dg4prez macrumors newbie

    Joined:
    Dec 13, 2013
    #10
    I've spoken with Tim Cook's office about this over the phone a few times, and ended up speaking to some engineers. I'm told this will be fixed in the next build - this was late last week. Not sure what the timeline for that is, I assume either today before release, or as a patch after release.
     
  11. Hung_Solo macrumors member

    Joined:
    Apr 13, 2016
    #11
    I have an LG 27UD88 monitor so if there seems to be issues with Sierra and external displays I may wait to update until this is resolved.
     
  12. shinji macrumors 65816

    shinji

    Joined:
    Mar 18, 2007
    #12
    Has anyone had an issue with the 23" Cinema Display?
     
  13. frankdogg macrumors regular

    frankdogg

    Joined:
    Mar 24, 2011
    Location:
    Mid-Wilshire LA
    #13
    this is the only thing preventing me from upgrading the OS. hope it gets fixed asap.
     
  14. accentaudio macrumors 6502

    accentaudio

    Joined:
    Apr 4, 2012
    Location:
    Kansas City
    #14
    dg4, I'm sorry, but I don't believe you talked to "Tim Cook's office" or any engineers. Also, as of today's final release these issues still remain. Maybe you can call Tim Cook back so he can let his engineers know lol... ;)
     
  15. DaDalle macrumors member

    Joined:
    Sep 17, 2011
    #15
    had anyone the chance to test the 10.12.1 Beta? Is the issue still there?
     
  16. accentaudio macrumors 6502

    accentaudio

    Joined:
    Apr 4, 2012
    Location:
    Kansas City
    #16
    Wondering the same thing... Quite crazy that Apple is letting this external monitor thing slip through. Really makes me believe they are about to drop some new displays for sale and this is their way to get people to buy them.
     
  17. molokai_man thread starter macrumors newbie

    Joined:
    Sep 15, 2016
    #17
    It's pathetic. Fixing this is a couple lines of code and a library.
     

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