Mac Mini Screen Flickers Black

Discussion in 'Mac mini' started by appkingpin, Dec 18, 2018.

  1. appkingpin macrumors newbie

    Nov 12, 2012

    I have a Mac Mini with 3.2GHz i7 chip, 32GB of RAM and 512GB SSD. I have it directly connected to a LG 4K Ultrafine. I notice it will flicker to a black screen for about 1 second randomly. Usually happens right after I start using the mini for a few minutes when powered on.

    Anyone else experiencing this?

    I also have the coil whine issue, but it seems to have improved compared to the first day I used the mini.
  2. dimaspivak macrumors newbie

    Dec 2, 2018
    Yep, been having this off and on with 2 separate Minis, 3 monitors, and a half-dozen types and makes of cable. If you're using a USB-C to DisplayPort, try a USB-C to HDMI cable; that solved the problem for me. Unfortunately, the HDMI-HDMI was still exhibiting the problem.
  3. appkingpin thread starter macrumors newbie

    Nov 12, 2012
    Thanks for letting me know. Will try that, but looks like this is a wide-spread issue. Hopefully it can be resolved with a software update.
  4. dimaspivak macrumors newbie

    Dec 2, 2018
    Just got off the phone with the Apple Support Engineer I've been working with for a few weeks on reproducing this issue. He informed me that the engineers there are aware of this issue and that there will more likely than not be a software update to address it.
  5. solidify macrumors newbie

    Dec 12, 2018
    Oh, that is good.

    So let's say that the software fixes the issue, which will be the best way to connect a monitor (2560X1440)?

    HDMI to HDMI?
    USB-C to DisplayPort?
    USB-C to HDMI?

    I like the simplicity of HDMI to HDMI, but I am just curious if there is a difference.

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4 December 18, 2018