Mac Mini Sleep Issues

Discussion in 'Mac mini' started by That-Guy, Oct 10, 2015.

  1. That-Guy macrumors 6502a

    That-Guy

    Joined:
    Feb 25, 2012
    Location:
    UK
    #1
    So I have a late 2012 Mac Mini, I have had the same issue using Mavericks, Yosemite and El Capitan.

    If my Mac Mini goes to sleep for long periods of time (over an hour for example) my monitor will not power on when the system does. I know the Mac wakes as I can remote desktop into it, which also turns the monitor on. But when I disconnect from remote desktop the monitor goes off again.

    So for the last 3 versions of OS X I have had to disable sleep due to the monitor not coming back on.

    I always do a fresh install of OS X between versions too.

    Anyone else experiencing this? or had something similar?

    Anyone know of any possible fixes?
     
  2. adamcarvell macrumors regular

    adamcarvell

    Joined:
    Dec 15, 2013
    Location:
    warwickshire england
    #2
    I've had this problem too i usually just reboot . no fix found for me either
     
  3. That-Guy thread starter macrumors 6502a

    That-Guy

    Joined:
    Feb 25, 2012
    Location:
    UK
    #3
    It it really annoying after 3 major releases of OS X and still no fix.

    Im starting to wonder if its a hardware issue that Apple simply can't fix?
     
  4. Crosscreek macrumors 68030

    Crosscreek

    Joined:
    Nov 19, 2013
    Location:
    Margarittaville
    #4
    Probably your display settings on your display or what port you have your display set up with.

    For example my Dell monitor would not use power saving on my Mini hooked up via HDMI to HDMI but in I hook it up TB to DVI it works fine.

    Hope it helps.
     
  5. That-Guy thread starter macrumors 6502a

    That-Guy

    Joined:
    Feb 25, 2012
    Location:
    UK
    #5
    Thanks it's HDMI, I did try a cheap Display Port to HDMI cable about a year ago but still had the same problem.

    Wondering if it may be the monitor itself which isn't compatible it's a Samsung SA350. Sadly don't have another monitor to test.
     
  6. Crosscreek macrumors 68030

    Crosscreek

    Joined:
    Nov 19, 2013
    Location:
    Margarittaville
    #6
    What ports are on your display? If you have DVI I would suggest a MonoPrice TB to DVI. I think your problem is HDMI. MonoPrice has excellent cables at a cheap price but don't Know if they are available in the UK.
     
  7. That-Guy thread starter macrumors 6502a

    That-Guy

    Joined:
    Feb 25, 2012
    Location:
    UK
    #7
    Sadly only HDMI and VGA :(
     
  8. adamcarvell, Oct 12, 2015
    Last edited: Oct 12, 2015

    adamcarvell macrumors regular

    adamcarvell

    Joined:
    Dec 15, 2013
    Location:
    warwickshire england
    #8
    i have a lindy gold plated thunderbolt to mini thunderbolt to my display.
     
  9. adamcarvell macrumors regular

    adamcarvell

    Joined:
    Dec 15, 2013
    Location:
    warwickshire england
    #9
    i have a lindy gold plated thunderbolt to mini thunderbolt to my display.
     
  10. LaurieAnn macrumors regular

    LaurieAnn

    Joined:
    Jul 6, 2011
    #10
    I have a brand new Mac Mini late 2014 that's still running Yosemite. My Samsung monitor consistently wakes to grey snow. Most of the time I can get it to go away with hitting the space bar or escape key. Sometimes I have to turn my monitor off and on. I'm connected via HDMI to DVI. I'm considering Crosscreek's suggestion of a MonoPrice TB to DVI. There is a huge 18 page discussion over at the Apple Support Forum about this long standing same issue.....

    https://discussions.apple.com/thread/6627963?start=255&tstart=0
     
  11. jgelin macrumors 6502a

    jgelin

    Joined:
    Jul 30, 2015
    Location:
    St Petersburg, FL
    #11
    I too am having the same problem. My acer monitor is hit or miss when waking from sleep. Right now it is currently not detected and is black as I am typing this. The fact that my monitor only comes on sometimes is absolutely the worst thing I have experienced with hardware like WHY not just work? Very 'un-apple' like of a problem.
     
  12. rshrugged macrumors 6502a

    Joined:
    Oct 11, 2015
    #12
    I returned a late 2014 Mini because of this sleep to wake issue(s). There's other threads at ASC with reports of 'monitor won't wake' and/or wakes to 'technicolor'. AFAIK, unfortunately, it seems it hasn't been cured for everyone.

    So far, I've found no 'aha!' commonality among the affected set-ups. Even reported 'cures' vary -- fresh OS install, different cables such as using a MDP to DVI without adapter, cable with ferrites at each end, use of an active adapter. Maybe one of these will work for someone here.
     
  13. MRrainer macrumors 6502a

    Joined:
    Aug 8, 2008
    Location:
    Zurich, Switzerland
    #13
    Sometimes (very seldom) my HP LP 3065 (connected via TB2DL-DVI adaptor) also doesn't wake up correctly.
    Either no picture or it looks like the resolution has decreased massively.
    It looks like 3rd-party USB gear sometimes plays a role in this.
    I never had this problem with a very old 24" Dell LCD (via HDMI). It's still connected via HDMI, as a 2nd display.
     

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