MBP (macOS Sierra) + External display issues

Discussion in 'MacBook Pro' started by dcdcc, Apr 16, 2018.

  1. dcdcc macrumors newbie

    Apr 16, 2018
    I recently got a used Dell U2413 as a secondary monitor to my MBP (15" Mid 2012, non-retina, macOS Sierra). I'm currently an experiencing an issue where the external display would shut off, including its power led, 30mins to an hour after turning it on with the laptop. I would have to either unplug the monitor and wait a few minutes, or just wait until the monitor turns itself back on. I tried using the monitor with different sources (PC, android tv box) and all seem to be working fine. I also tried to boot to a Yosemite backup drive and it was working perfectly fine.

    Do you guys have an idea why?

  2. AustinIllini macrumors G3


    Oct 20, 2011
    Austin, TX
    update to High Sierra and see if the issue continues
  3. Fishrrman macrumors G5


    Feb 20, 2009
    I don't think it's a matter of "updating" to High Sierra. HS is "a bag of hurt" for many folks.

    OP -- this probably has something to do with sleep, hibernation, etc.
    Can't be more helpful beyond that...

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