Mihai Graphster
Level 1 (0 points)

Q: Mac mini (late 2014) display Flicking/goes Off and On

Hi everyone!

Well.. i can say that, this is my first Mac computer and i already have problems. I have read a lots of comments and i have seen that many people experienced this problem with Mac mini, like display corruption, not property colors, flicking, display goes off and back on... or just standing on sleep and not turning on. (like Mac mini 2012 or 2011.. i have read about same issue..) so whats really happen?

 

So, from the peoples comments i tried possible solutions:

SMC Reset

I have Reinstalled the OS X Yosemite (complete HDD format)

I have changed the cable

(Nothing works)

 

Some detail about my connection:

I have Mac mini (late 2014) i5 2,6GHz dual-core, 8GB ram, Iris Graphics (Intel), 1TB HDD

I have connect it via miniDP to DP > to > Dell UltraSharp U2713HM

My following issue:

-Screen goes Off and On without reason (mostly happens when i connect my iPhone i have noticed, or maybe just impression..)

-Screen goes to Sleep without reason while i'm on computer (this normally happens after a few off and on screen flickers)

-Image corruption/distortion (after this display goes off and on, or just remaining on sleep.. like not detected

 

I hope someone can help me with this problem, i just bought it one week ago and i don't know what should i do, because as well i have read that even i'll change it, it can have the same problem.

Waiting or a response,

Best regards.

Mac mini, OS X Yosemite (10.10.2)

Posted on Mar 16, 2015 8:23 AM

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Mihai Graphster

Q: Mac mini (late 2014) display Flicking/goes Off and On

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  • by Mihai Graphster,

    Mihai Graphster Mihai Graphster Mar 17, 2015 7:25 AM in response to Mihai Graphster
    Level 1 (0 points)
    Mar 17, 2015 7:25 AM in response to Mihai Graphster

    Update: I'm coming back with a possible tip for fixing this issue (I hope Apple Stuff will notice this.)

    So, how i said in the previews message.. the Image corruption / and going Off and On the display happens mostly when i'm connecting the iPhone. Theory tested a few times, and take a guess.. it's true.

    When i'm connecting the iPhone, the monitor goes crazy.. for some seconds, turning off and on.. and sometimes Image corruption, then coming back like nothing happened. Because i found out this, i was making more tests with the iPhone.

    First, erasing the disk and reinstall the OS X again. Everything worked perfectly, until i was connecting the iPhone. I got directly Image corruption and Screen goes Off and On a several times. After this is happening, and you'll unplug the iPhone and put it again, you may not receive again Image corruption or Screen to go Off and On, but after a restart when you'll connect it again, you will receive almost everytime.


    So.. after this, i was testing further. I have Paired my iPhone with iMessage and FaceTime, to see if can be a possible issue there also. True again!

    Receiving messages from iPhone to Mac / Sometimes display goes Off and On

    Receiving a Call via FaceTime to Mac (from your iPhone carrier) / Image corruption / Screen Off and On

     

    After a day of test, i have realise where is the problem. "iPhone connection/Mac"

    So, the cable it's good (connection miniDP to DP), by Surfing and by running other Apps i have no problem (at least until now), the only problem what cause the Image corruption and Screen Off/On for several times, it is only because of the connection with the iPhone.

     

    I hope is someone there from Apple Stuff that will take this as notice to solve this problem. Because it is 99% software problem, and i hope it will appear soon enough an Update/Fix.

    Thank you!

  • by Dancin' Brook,

    Dancin' Brook Dancin' Brook Mar 28, 2016 7:13 AM in response to Mihai Graphster
    Level 4 (2,028 points)
    Desktops
    Mar 28, 2016 7:13 AM in response to Mihai Graphster

    Hmmmm, I have the same problems described but not w/ the iPhone connected (or not) variable.  Are you connecting wired or wireless? If wireless, then perhaps.

     

    I'd love to know where Apple comes down on this. I wish there weren't so many class action lawsuit lawyers ready to jump as I would if Apple would share more information publicly about these kinds of problems.