Results 1 to 13 of 13
  1. #1

    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    Uneven backlight and hum on iMac 24"
    So how many people have an uneven backlight on their iMac 24-inch?

    I also have the hum when you dim the backlight using the display control panel.

    I have used Shades to dim the screen instead which is ok, but when you use Expose it goes back to full brightness while the windows are shrunk.

    I'm thinking about returning the iMac, selling the Macbook and just going for a Mac pro and be done with it.

  2. #2

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,052
    Specs:
    iMac 2010 27" QuadI7 OS10.12, iMac 2008 OSX10.11, MBP Late2011OS10.12 , iPad Air, iPhone 3GS
    A Mac Pro has no display. You would still have to purchase a display. I have a 20" imac and the backlight is very uniform. I am hoping some others here will see this and reply who own a 24". I have heard nothing but praise for the 24"'s display.

  3. #3

    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    I know the Mac pro has no display, but I have a perfectly good 22 inch widescreen monitor I can keep instead of selling.

    It comes to something when a 200 Belinea monitor has a better picture than the screen in a iMac.

    The 20 inch has no problems with backlight, this is unique to the 24 inch. I wanted a 20 inch but they had no refurbished ones. I should have just bought a new one but the 24 inch refurb was Only 179 more.

    Maybe given time I would get used to it, it's just I don't think anyone should tolerate such design faults.

  4. #4


    Member Since
    Apr 10, 2007
    Posts
    313
    I got an early 20" G5 and the display is tip top, if you have a warranty I'd return it.

  5. #5

    Alexis's Avatar
    Member Since
    Apr 20, 2006
    Posts
    2,255
    Specs:
    Al iMac 20" 2.4Ghz Intel Core 2 Duo
    Two 20" iMacs here with perfect displays.

    Take yours back.

  6. #6

    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    Like I said before, this is the 24-inch model. The 20-inch models don't have this problem.

  7. #7

    powerplay's Avatar
    Member Since
    Apr 27, 2007
    Location
    Burlington, Ontario
    Posts
    2
    Specs:
    24" iMac 2.16Ghz, 1G RAM, 250G HDD (internal), 250G HDD (External FW)
    I have a 24" iMac and I have no issues with the screen whatsoever.

  8. #8

    awrence's Avatar
    Member Since
    Mar 15, 2007
    Location
    utrecht, netherlands
    Posts
    80
    Specs:
    i-mac dual-core 2.16Ghz 24inch, Macbook 2.4Ghz alu, 27" iMac Core 2 Duo 3.06Ghz
    It seems that you have a duf 24" mac. I also have a 24" mac and no problems with backlight.

  9. #9

    Alexis's Avatar
    Member Since
    Apr 20, 2006
    Posts
    2,255
    Specs:
    Al iMac 20" 2.4Ghz Intel Core 2 Duo
    Like I said before, this is the 24-inch model. The 20-inch models don't have this problem.
    Every 24" owner here is happy and every 24" in the shops seem fine to me.

    I don't know what else we can tell you.

  10. #10

    SpindleX's Avatar
    Member Since
    Jan 04, 2007
    Location
    Asheville, NC
    Posts
    80
    Specs:
    iMac Alum 20'' 2.4GHz | iMac G4 | iPod Silver Nano 2GB
    The 'hum' is normal.

  11. #11

    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    Hum seems to be the norm, my 22 inch monitor did it. Adjusting the contrast and brightness solved that.

    Anyway, I over reacted in terms of the backlight. The next day I looked at it again and it doesn't seem so bad, it's within Apple specifications. I'm selling it anyway as the display is just too big for me, plus I really need the expansion capabilities of a Mac Pro.

  12. #12

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,052
    Specs:
    iMac 2010 27" QuadI7 OS10.12, iMac 2008 OSX10.11, MBP Late2011OS10.12 , iPad Air, iPhone 3GS
    Quote Originally Posted by gilesjuk View Post
    Hum seems to be the norm, my 22 inch monitor did it. Adjusting the contrast and brightness solved that.

    Anyway, I over reacted in terms of the backlight. The next day I looked at it again and it doesn't seem so bad, it's within Apple specifications. I'm selling it anyway as the display is just too big for me, plus I really need the expansion capabilities of a Mac Pro.
    If you need Expansion and want an OSX machine, the Mac Pro is the way to go. I hope you will enjoy it. I think you are doing the right thing for what you want in a computer.

  13. #13

    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    Quote Originally Posted by dtravis7 View Post
    If you need Expansion and want an OSX machine, the Mac Pro is the way to go. I hope you will enjoy it. I think you are doing the right thing for what you want in a computer.
    Indeed, i'm just a bit miffed at the fact that they used FB-DIMMS when they appear to be going the way of rambus. Intel dropping support for them already. Obscure memory is never a good thing. Plus the latency concerns me a tad.

    Incidentally, I'm returning the iMac to apple for a refund. I was unsure if the refund was possible after removing the packaging (it refers to seals in the conditions, but these are case seals not the seals on the protective wrapping).

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 27" iMac Hum Resolved
    By VegasGeorge in forum Apple Desktops
    Replies: 9
    Last Post: 11-09-2014, 03:16 PM
  2. Uneven LED Backlight
    By Cumulus32 in forum Apple Notebooks
    Replies: 3
    Last Post: 03-01-2010, 09:26 AM
  3. iMac hum
    By Artmuzz in forum Apple Desktops
    Replies: 2
    Last Post: 06-16-2008, 05:34 PM
  4. New iMac 24" with hum. Please advise
    By bobbis in forum Apple Desktops
    Replies: 3
    Last Post: 06-04-2008, 07:44 PM
  5. Uneven display PB 12"...who else ?
    By dpics in forum Apple Notebooks
    Replies: 3
    Last Post: 10-19-2005, 03:33 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •