Mac Mini 2018 Issues

Discussion in 'Mac mini' started by mralexandercom, Feb 17, 2019.

  1. mralexandercom macrumors member

    Joined:
    Oct 16, 2018
    #1
    Hello,

    I have about 10 or so fairly standard/heavy programs running on my Mac, simultaneously:
    - Vagrant, local server. NGINX, Maria DB, Ubuntu.
    - Adobe Photoshop
    - Adobe Ilustrator
    - Safari (10 tabs)
    - Chrome (10 tabs)
    - FileZille
    - Adobe Dreamweaver
    - Zeplin
    - Excel
    - Word

    Here are my specs:
    - 3.2 GHz Intel Core i7
    - 32 GB 2667 MHz DDR4
    - Intel UHD Graphics 630 1536 MB
    - 2 x LG Ultra HD 4K Display (3840 x 2160)

    Issue #1 - Monitor not waking up

    Both monitors are connected with a usb-c to display port cables. At times, when the computer wakes up from sleep 1 of the monitors is not waking up "no signal". I would then need to disconnect the usb-c cable and connect it to another slot.

    Issue #2 - Mac mini Overheating

    Sometimes I notice that the Mac Mini is extremely hot. Luckily it is besides a window and it is -20º so I open the window for few minutes to cool it down.

    Any advise?
     
  2. BasicGreatGuy Contributor

    BasicGreatGuy

    Joined:
    Sep 21, 2012
    Location:
    In the middle of several books.
  3. vAronized macrumors newbie

    vAronized

    Joined:
    May 19, 2012
    Location:
    Germany
    #3
    Regarding Issue #1: I also got problems with my monitor not waking up properly when the Mac mini was in Sleepmode. It's really annoying and it looks like it is a very common problem. Got my Mac mini last Thursday and it struggles with the Waking-Issue since the first day. I guess Apple knows about it and will hopefully fix this soon. Otherwise I would send the mini back.
     
  4. Yuck9 macrumors member

    Yuck9

    Joined:
    Dec 9, 2014
    Location:
    California
    #4
    Are you sure they know ? Even if they do, that never means they will fix it. Look at the BT And WiFi problems and still no fix from Apple. All the fixes, inc mine is just a band aid. Nothing set in stone.
     
  5. weaztek macrumors member

    weaztek

    Joined:
    Aug 28, 2009
    #5
    OS 10.14.6 fixed an issue with waking from sleep. Also make sure your monitor isn't set to sleep in the monitor settings so as not to conflict with the Mac OS settings that also have the display go to sleep. Between those two things I no longer have wake issues.
     
  6. Krevnik macrumors 68040

    Krevnik

    Joined:
    Sep 8, 2003
    #6
    Sleep from wake issues also seem to depend on the display you are using as well, and if you are on an eGPU or not.

    Since I'm replacing an iMac, I've been trying to find a replacement monitor I can use with a PC as well for gaming, but still doesn't feel terrible switching to from the 5K 27". It's been a long road, and I've tried a number of displays so far.

    Not all monitors seem to have wake from sleep issues in the same way. For me, the least reliable was HDMI on an eGPU with monitors that are slower to wake. DisplayPort on the eGPU or using USB-C -> DisplayPort some of the most reliable. LG's 27UL850 almost never woke up from sleep over HDMI correctly for me unless hooked directly up to the Mac Mini, and then it was flaky, while I've tried a couple others without such problems. It's... weird.

    Which LG 4K displays are you using? Ironically, the 27" LG I tried was one of the least reliable to wake from sleep for me. Especially if an eGPU was involved.
     
  7. tyche macrumors 6502

    Joined:
    Jul 30, 2010
    #7
    My mini has 2 monitors on dp and hdmi. I used to have constant problems getting the hdmi one come up during booting. Sometimes even the dp one. It would take turning it off/on sometimes, sometimes waiting. It was a gamble if both would work at startup. Same with waking from sleep although due to this I have the delay so long I rarely ran into it.

    Since the latest macOS supplemental update, both monitors now work perfectly every time I start my mini. I do this 1-2 times a day and it's been long enough now I don't believe it's a fluke things are working. I'm happy this finally appears to be fixed.
     
  8. sunapple macrumors 68000

    sunapple

    Joined:
    Jul 16, 2013
    Location:
    The Netherlands
    #8
    The wake-up issue seems to be widespread as I’ve read about this on the forums before and I’m experiencing it myself.

    My 2018 Mini which is connected directly over USB-C to my LG 32UD99 doesn’t wake the display properly about 50% of the time. The recent macOS update others are referencing to did not make a difference for me.

    Issue is as follows: Mini wakes up from sleep, display shows a “no signal” message. Turning the monitor off and on again resolves the issue, shows the Mini woke up despite the “no signal” message.
     
  9. frou, Aug 31, 2019
    Last edited: Aug 31, 2019

    frou macrumors 6502a

    frou

    Joined:
    Mar 14, 2009
    #9
    Seems a bit daft, given that the Mini is mostly made of metal and yet this thing blows air against the rubber foot.

    Wouldn't be surprised if it was move effective to put an upside-down Mini onto it: The foot area can breathe freely on top, and the fully metal face gets blown on by the fan like a heatsink.
     
  10. Heat_Fan89 macrumors 6502

    Joined:
    Feb 23, 2016
    #10
    Yeah I can't see how in the world it would improve the cooling. I would first try the fan speed control app which is free followed by sitting the Mini on it's side. And if I were to consider raising it, I would place flat school erasers on each corner, much cheaper option.
     
  11. Krevnik macrumors 68040

    Krevnik

    Joined:
    Sep 8, 2003
    #11
    Yeah, the biggest problem is more that the CPU runs right up against the limits of cooling available when it boosts. Not something this thing can fix.
     
  12. frou macrumors 6502a

    frou

    Joined:
    Mar 14, 2009
    #12
    I guess the circular ridge on the stand results in metal-on-metal contact even if the fan doesn't do much. Maybe dab a thin layer of thermal paste all the way around :D
     
  13. George Dawes macrumors 6502a

    George Dawes

    Joined:
    Jul 17, 2014
    Location:
    =VH=
    #13
    I thought when they redesigned the mini they’d at least sort out the cooling issues

    I had 2 pack up due to overheating
     
  14. weaztek macrumors member

    weaztek

    Joined:
    Aug 28, 2009
    #14
    I'm running an LG 32UD59-B over the supplied HDMI cable. Once in a while the display doesn't want to wake up but a simple tap of the control button on the monitor seems to wake it right up. Not a big deal at all IMO.
     
  15. Chiromac81 macrumors regular

    Joined:
    Nov 18, 2018
    Location:
    Ontario Canada
    #15
    I am not sure if this is the right thread but here goes:

    I have a 2018 Mac mini that I use for all my Mac needs now. My old Mac upstairs is rarely used except for my wife (she has a separate log in). I would like my stuff upstairs to not sync with my stuff downstairs and vice versa so if I have to delete a whole bunch of stuff on the old Mac it won’t delete it on my mini desktop.

    Do I have to uncheck something on both minis for this to happen or just one?

    Also, if I eventually delete my account upstairs all together so it’s just my wife’s, will that cause problems since it’s the same account?

    Right now my log in is the default upstairs and my wife woukd like hers to open when the computer first turns on so I want to make that happen since I don’t use it anymore...

    Any help is much appreciated thanks :)
     
  16. yukari macrumors 6502

    yukari

    Joined:
    Jun 29, 2010
    #16
    It's not the mac per se that syncs with other macs. It is your icloud account. If both macs use the same icloud account, all the ones that are checked under icloud will be synced.

    To be sure you do not sync one mac to another, have a different icloud account for each mac.

    Look under "System Preferences" --> "icloud"
     
  17. Chiromac81 macrumors regular

    Joined:
    Nov 18, 2018
    Location:
    Ontario Canada
    #17
    Gotcha-yes, I cloud sync on the Mac is what I meant. But if I don’t want another different account I just don’t want things to change on either desktop if I delete a file on my main Mac mini or if I decide to change something on the main Mac.

    So, having said that, would I turn the iCloud sync off on both macs or just one?
     
  18. yukari macrumors 6502

    yukari

    Joined:
    Jun 29, 2010
    #18
    It depends on what you want. If you don't sync to iCloud, all your stuff will only be stored in your local mac. If you only sync one computer to iCloud, it is only that computer that will backup to iCloud.
     
  19. Chiromac81 macrumors regular

    Joined:
    Nov 18, 2018
    Location:
    Ontario Canada
    #19
    Ok thanks. I want the main Mac (mini) to keep syncing to the iCloud just not to the Mac I don’t use anymore. I also, don’t want the Mac I don’t use much to sync to the main Mac mini or to iCloud.

    My only concern is that if I uncheck the box for the iCloud on the secondary Mac it will delete ALL the stuff both on the iCloud and/or on the main Mac in the process...will this happen?
     
  20. yukari macrumors 6502

    yukari

    Joined:
    Jun 29, 2010
    #20
    If you uncheck iCloud sync on the secondary mac, it MAY ask if you want to keep a local copy (mine always does). You can either keep a copy on the secondary mac, if you want, or say "no." Either way, the copy on the iCloud is NOT affected.
     

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19 February 17, 2019