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  1. #1
    screen wont darken imac 10.5.8

    Member Since
    Aug 23, 2009
    Posts
    2
    screen wont darken imac 10.5.8
    I found were this was posted before but no answer, so here goes...
    these are the specs:
    Model Name: iMac (10.5.8)
    Model Identifier: iMac9,1
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2.93 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache: 6 MB
    Memory: 4 GB
    Bus Speed: 1.07 GHz
    .............
    NVIDIA GeForce GT 120:

    Chipset Model: NVIDIA GeForce GT 120
    Type: Display
    Bus: PCIe
    PCIe Lane Width: x16
    VRAM (Total): 256 MB
    Vendor: NVIDIA (0x10de)
    Device ID: 0x0655
    Revision ID: 0x00a1
    ROM Revision: 3370
    Displays:
    iMac:
    Resolution: 1920 x 1200
    Depth: 32-Bit Color
    Core Image: Hardware Accelerated
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Quartz Extreme: Supported
    Built-In: Yes
    .................
    the problem is this, the machine is a month old and when using the slider bar or keyboard keys to darken the screen, it only goes so dark, but no where near black, it certainly doesn't have the full dark to light ability...does anyone else have this problem or know what and why, or do I just need to put in a call for service?

  2. #2
    screen wont darken imac 10.5.8
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    31,499
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.7.5
    Quote Originally Posted by professerp View Post
    the problem is this, the machine is a month old and when using the slider bar or keyboard keys to darken the screen, it only goes so dark, but no where near black, it certainly doesn't have the full dark to light ability...does anyone else have this problem or know what and why, or do I just need to put in a call for service?
    I guess I'm not fully understanding the problem here...

    If you can see things on your display properly & your screen gets as bright as you need it...why are you concerned that the screen won't go to complete "blackness" or darkness...basically to the point that you can't see anything on the screen?

    Just wondering...thanks,

    - Nick

  3. #3
    screen wont darken imac 10.5.8

    Member Since
    Aug 23, 2009
    Posts
    2
    re
    why? well first, I don't know if this is common to all 24 inch imacs or a fault with mine. I have never had an imac, ibook, or pc that you could not darken the screen on. Second, if this is not inherent to this model, then there is a problem with the board and needs to be addressed. It is not a matter of wanting to slide the light adjust bar all the way down to black, it is a matter of making sure the graphics card is not faulty so that I know that I am seeing all of the limited 255 shades of grey for processing digital photographs in black and white.

    So I ask again. Is there anyone else out there that has the same problem, or is this just the way the new 24 inch imac displays work?

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