Mac Desktops forum


iMac 24" screen brightness issues.

by BullDonkeyNonsense / February 15, 2013 7:54 AM PST

So, even though my iMac has a great-looking picture quality, it is considerably darker than most other monitors that I've seen, including PC's as well as other iMacs and MacBook Pros. I went through all of the screen calibration process, and of course made sure that the generic brightness control was turned all of the way up, as well. I look at a picture on my iMac, especially a picture that was taken in low-light, and then look at that same picture on someone else's computer, and there is so much more detail in the low-light areas. On my computer, sometimes I can barely see the things in the shadows and darker areas of pictures. I don't know what else could be wrong with my screen. Here is my hardware info:

Hardware Overview:

Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM91.008D.B08
SMC Version (system): 1.45f0
Serial Number (system): W89246NB0TG
Hardware UUID: 142F3D3D-B823-50E6-9C2A-17B42ACA1EEA

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All Answers

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Any chance that there is still any warranty on that iMac?
by mrmacfixit Forum moderator / February 15, 2013 9:27 PM PST

Could be you have a failing backlight/LCD screen there
Something going on with your graphics card.

I tend to lean toward the screen idea on the grounds that brightness is not generally a function of the graphics card.


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No Warranty left...
by BullDonkeyNonsense / February 15, 2013 11:33 PM PST

I just don't understand it. Otherwise, the picture is crisp, clear and beautiful. It just appears as though the darks are way too dark sometimes.

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