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#559425 - 06/08/11 10:09 AM 27" Imac Display is Dim, No Longer Bright
Biggerfoot I invented modding! Registered: 10/10/02 Posts: 3970	I have a late 2010 3.2ghz i3 iMac. For six months, the screen has been nice and bright. Now, it is very dim...like it looks before the screen goes to sleep. I have done all of the usual steps: Zapped the PRAM, left it unplugged for a night, booted into root user to check if it was a software issue, checked the profiles, ran f-disk, started it up with CD...all without any luck. Of course, I also checked the display preferences. Is there anything thing else I have overlooked?
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#559426 - 06/08/11 10:18 AM Re: 27" Imac Display is Dim, No Longer Bright [Re: Biggerfoot]
John Rougeux Here? Registered: 11/06/08 Posts: 5031	The brightness key on the keyboard?
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#559427 - 06/08/11 11:47 AM Re: 27" Imac Display is Dim, No Longer Bright [Re: John Rougeux]
Biggerfoot I invented modding! Registered: 10/10/02 Posts: 3970	The brightness is turned up all of the way both in the System Preference and via the keyboard. It does adjust, just dim and not that super bright like it was. I have never had a LCD fail so I am not sure if it is just a backlight or the item that dims the screen prior to it going to sleep. The screen looks like it does after it dims prior to it going to sleep.
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#559428 - 06/08/11 12:26 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: Biggerfoot]
MacBozo Nut Dood Registered: 04/20/02 Posts: 16629 Loc: Pinellas Park, Florida	Originally Posted By: Biggerfoot The brightness is turned up all of the way both in the System Preference and via the keyboard. It does adjust, just dim and not that super bright like it was. I have never had a LCD fail so I am not sure if it is just a backlight or the item that dims the screen prior to it going to sleep. The screen looks like it does after it dims prior to it going to sleep. Got AppleCare? _________________________
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#559432 - 06/08/11 12:55 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: MacBozo]
Biggerfoot I invented modding! Registered: 10/10/02 Posts: 3970	Originally Posted By: MacBozo Got AppleCare? Yep...they want me to do a erase install today. This is a work CPU and to find the time to do this is hard. I am hoping a quick fix is out there. However, I will have to face it if it does not correct itself soon (I can still use it a bit). Of course, this is the only Mac here and I made a big deal about it to.
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#559433 - 06/08/11 01:01 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: Biggerfoot]
NucleusG4 MasterBlaster Registered: 04/19/02 Posts: 8400 Loc: Miami, Fl.	Wow.. that sucks. I would unplug it and let it sit for 10 minutes, completely unplugged. Have you installed anything recently? I hope it's not the bulbs going out, although typically the go out one before the other so it would be darker at top or bottom. Unless it's the inverter board acting up, then they could both be dimmed equally. I have a hard time believing it's the board, but rather some 3rd party utility or something? Have you unplugged all 3rd party hardware? _________________________ http://davidbearphotography.com/ ==== It appears that autocorrect has become my worst enema. ---
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#559434 - 06/08/11 01:03 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: NucleusG4]
NucleusG4 MasterBlaster Registered: 04/19/02 Posts: 8400 Loc: Miami, Fl.	Also try changing your color profile. _________________________ http://davidbearphotography.com/ ==== It appears that autocorrect has become my worst enema. ---
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#559436 - 06/08/11 01:17 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: Biggerfoot]
Jim_ aka Reboot Registered: 04/21/02 Posts: 11411 Loc: Columbus OH	Originally Posted By: Biggerfoot Originally Posted By: MacBozo Got AppleCare? Yep...they want me to do a erase install today. That's crazy, I hate dealing with them. If you just boot off of the install DVD it should tell the story. If it's dim when booted off of the DVD it's not the installation that's bad, it's hardware. The backlight board (inverter board) is going bad. Where do they get these "techs?" _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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#559437 - 06/08/11 01:19 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: NucleusG4]
Biggerfoot I invented modding! Registered: 10/10/02 Posts: 3970	It is dimmed equally. I do not have any system enhances like Fruit Menu but will try unplugging the USB and FireWire stuff. Last night, I left it unplugged over night with no change. I did try other profile, and even found one profile damaged that I had to repair via the utility but that did not help either.
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#559522 - 06/09/11 12:12 PM Re: 27" Imac Display is Dim, No Longer Bright [Re: Biggerfoot]
Biggerfoot I invented modding! Registered: 10/10/02 Posts: 3970	No luck with the unplugging overnight. I guess the next step is going for an Apple Care repair...not going to be fun.
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