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  1. #1
    Screen Resolution on Macbook Pro through Mini Display
    sjp1982's Avatar
    Member Since
    Aug 02, 2009
    Location
    UK
    Posts
    4
    Specs:
    MacBook Pro 15", iPhone 4, iPad 8gb Wifi
    Screen Resolution on Macbook Pro through Mini Display
    Hi,

    Firstly, this is my first time posting on these forums so I hope my question has found the right bracket for this.

    I am currently the proud owner of a Macbook Pro 15" from 2009 and I have never had any problems with the piece, just until now. I usually have it connected to a Samsung 32" screen when I am at home and through the mini display - HDMI it has been running flawlessly for about a year.

    A couple of days ago I had some internet connectivity issues and switched my laptop off and on a couple of times in an attempt to fix it (with success I might add) but for some reason my screen resolution to the Samsung screen has suddenly dropped as a result. Regardless of the settings I try I get a grainy image on the screen, definitely not a 1080p output. I have tried different HDMI cables, different HDMI ports.... I have even taken the computer to work to try a different TV! Still the same grainy image. I cannot for the life of me figure out why this has suddenly dropped in the output. The screen on the laptop itself is fine, it's only when connected to an external source.

    Anyone have any ideas?

  2. #2
    Screen Resolution on Macbook Pro through Mini Display
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,209
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    Note: 'Tis always better to ask one of the staff to move a thread than to create duplicates.

    Try a reset of the SMC.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  3. #3
    Screen Resolution on Macbook Pro through Mini Display
    sjp1982's Avatar
    Member Since
    Aug 02, 2009
    Location
    UK
    Posts
    4
    Specs:
    MacBook Pro 15", iPhone 4, iPad 8gb Wifi
    I tried resetting the SMC and it didn't seem to make much difference. The weird thing is it used to work fine, and it has suddenly dropped resolution.

    And thanks for the note, as I said, I'm new on here Please would an admin move this to the 'Other Hardware and Peripherals'-Forum as it seems more appropriate.

  4. #4
    Screen Resolution on Macbook Pro through Mini Display
    Dysfunction's Avatar
    Member Since
    Mar 17, 2008
    Location
    Tucson, AZ
    Posts
    6,821
    Specs:
    Way... way too many specs to list.
    Video settings are also stored in PRAM. Try resetting the PRAM. Good luck!

    Resetting your Mac's PRAM and NVRAM
    mike
    This machine kills fascists
    Got # ? phear the command line!

  5. #5
    Screen Resolution on Macbook Pro through Mini Display
    sjp1982's Avatar
    Member Since
    Aug 02, 2009
    Location
    UK
    Posts
    4
    Specs:
    MacBook Pro 15", iPhone 4, iPad 8gb Wifi
    A good call and I would never have thought of it myself, but it didn't seem to make a difference. I am starting to dread that it is something small and stupid that I have done, and when I find it I'll be kicking myself for a week! Either that, or it's something dead serious

  6. #6
    Screen Resolution on Macbook Pro through Mini Display
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,247
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    Another member some time ago had the same problem as you; it turned out that he did not scroll upward in the display resolution selection box far enough to select "1080p". The "1080p" selection will be at the top of the menu scroll box so make sure you're scrolling upward far enough to see it and select it.

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