Resolved Dual monitor static issue

Discussion in 'Mac mini' started by saha-med, Jan 17, 2014.

  1. saha-med, Jan 17, 2014
    Last edited: Jan 17, 2014

    saha-med macrumors regular

    Joined:
    Dec 2, 2012
    #1
    I have a Late 2012 Mac mini dual-monitor setup connected via the following configurations

    Thunderbolt port <-> TB-to-HDMI adapter <-> HDMI Monitor
    HDMI port <-> HDMI-to-DVI <-> DVI Monitor

    Whenever i wake my computer up from sleep, my HDMI Monitor resumes normally. My DVI monitor shows a pinkish display of my desktop for a few seconds, and then is filled with static. I have to manually unplug the DVI monitor cable from the back of my mini and plug it back in to make it work normally again. The funny thing is that all the while both these monitors have been working perfectly. Only recently (2 weeks back) i am starting to have these problems.

    Is there likely a problem with my mac such that i have to take it to the service centre
     
  2. itsOver9000 macrumors 6502

    itsOver9000

    Joined:
    Mar 29, 2013
    Location:
    B.F., KS
    #2
  3. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #3
    I would change from this:

    Thunderbolt port <-> TB-to-HDMI adapter <-> HDMI Monitor
    HDMI port <-> HDMI-to-DVI <-> DVI Monitor

    To this:

    Thunderbolt port <-> MiniDisplayport-to-DVI adapter <-> DVI Monitor
    HDMI port <-> HDMI-HDMI cable <-> HDMI Monitor

    ... and see how things go that way.
     
  4. saha-med thread starter macrumors regular

    Joined:
    Dec 2, 2012
    #4
    Thanks to both of you. I borrowed a TB adapter to try that out. Static issue seems to gone, but the HDMI monitor has a very slight blur to it (when connected to the HDMI port).
     
  5. itsOver9000 macrumors 6502

    itsOver9000

    Joined:
    Mar 29, 2013
    Location:
    B.F., KS
    #5
    hmm.. only thing I can think of would be to check the resolution settings of the HDMI monitor under system prefs.
     
  6. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #6
    re
    [[ only thing I can think of would be to check the resolution settings of the HDMI monitor under system prefs. ]]

    Also check the settings on the monitor itself.
    Is there an "overscan" setting on it?
     
  7. joyrida12 macrumors newbie

    Joined:
    Jan 11, 2014
    #7
    I went through 2 Mini dp >> hdmi adapters before I finally got rid of the static, I could get it to stop if I moved the end of the adapter around but if I let it go it would start doing it again.
     
  8. saha-med thread starter macrumors regular

    Joined:
    Dec 2, 2012
    #8
    Awesome mate...it was the underscan which was slightly turned on

    Thanks alot
     

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