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  1. #1


    Member Since
    Aug 22, 2011
    Posts
    5
    Flashing screen!
    Hi there,

    I'm hoping that someone can help me with this problem, or this flashing screen will send me mad!

    I currently have my MacBook Pro hooked up to a larger Mac display. The screen flashes every 3-4 minutes, and I don't know how to stop it!

    Does any one have any suggestions?

    Thanks!

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
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    49,110
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Check the cable or adapter to make sure they're connected tight. A flashing screen usually indicates a loose or defective cable or connector. Check both ends. If either appears defective, replace them.

  3. #3


    Member Since
    Aug 22, 2011
    Posts
    5
    Thanks so much!

    I feel a bit stupid, but I think that has fixed it!

    Thanks!

  4. #4

    toMACsh's Avatar
    Member Since
    Jul 30, 2009
    Location
    Wisconsin
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    6,189
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    Mac Mini (Late 2014) 2.6GHz Intel Core i5 Memory: 8GB 1600MHz DDR3
    No need to feel stupid. Just remember: always check the simple stuff first.

  5. #5


    Member Since
    Aug 22, 2011
    Posts
    5
    Hi all! It is back! I have played with the cords, and it is not making a difference. Is there something else it could be? Thanks

  6. #6

    AppleCider's Avatar
    Member Since
    Aug 21, 2011
    Location
    The evil side of your mind.
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    133
    Specs:
    iMac Early 2008, 2.4 GHz Intel Core 2 Duo, 3 GB 800 MHz DDR2 SDRAM ATI Radeon HD 2400 XT 128 MB
    Check your universal access settings. There is a setting to make your screen flash when any kind of notification comes up, or you press a wrong key. Turn the volume up,does it make a noise when it flashes?
    ... If one falls flat on their face, at least they were moving in the right direction...

    Forward...

  7. #7


    Member Since
    Aug 22, 2011
    Posts
    5
    Hi! No, no noise. Thanks!

  8. #8

    AppleCider's Avatar
    Member Since
    Aug 21, 2011
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    The evil side of your mind.
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    Specs:
    iMac Early 2008, 2.4 GHz Intel Core 2 Duo, 3 GB 800 MHz DDR2 SDRAM ATI Radeon HD 2400 XT 128 MB
    Did you check the universal access? Try a restart
    ... If one falls flat on their face, at least they were moving in the right direction...

    Forward...

  9. #9


    Member Since
    Aug 22, 2011
    Posts
    5
    Where do I find this setting? Thanks!

  10. #10

    chscag's Avatar
    Member Since
    Jan 23, 2008
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    49,110
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Quote Originally Posted by lucyh View Post
    Hi all! It is back! I have played with the cords, and it is not making a difference. Is there something else it could be? Thanks
    As I said before, the cable may be defective. Try changing it out for another to see if that cures it. It could also be the adapter that's bad. I'm assuming you're using a mini-display port adaptor or perhaps HDMI?

  11. #11

    AppleCider's Avatar
    Member Since
    Aug 21, 2011
    Location
    The evil side of your mind.
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    Specs:
    iMac Early 2008, 2.4 GHz Intel Core 2 Duo, 3 GB 800 MHz DDR2 SDRAM ATI Radeon HD 2400 XT 128 MB
    Quote Originally Posted by lucyh View Post
    Where do I find this setting? Thanks!
    Go to system Preferences, and in the right top corner, there will be a blue circle with a white stick figgy on it. When you click on it, go to the top, and select hearing. See if "Flash the screen when an alert sound occurs" is selected. If it is, deselect it.
    ... If one falls flat on their face, at least they were moving in the right direction...

    Forward...

  12. #12

    EvenStranger's Avatar
    Member Since
    Dec 09, 2010
    Location
    Virginia
    Posts
    844
    Specs:
    Currently 13" Late 2010 MBA, 4GB/128GB; Early 2011 13" MBP, dual core i7 2.7ghz, 4gb ram, 500gb hd
    I've seen the cable on the studio displays go bad at either the plug end or the display end. Wiggle the cable at both ends and see if you can replicate the flash. If it does appear to be the cable, it's is not easily detachable from the display, and usually requires the entire display be sent in for services.

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