I've spent the past 6 hours trying to resolve this issue, but 2 hours on the phone with tech support from apple and x-rite, along with hours of searching forums and troubleshooting; I've yet to find a solution.
Here's the problem. I'm trying to calibrate my 24" imac (intel based, non glossy screen). I purchased the "Eye-One Display 2" monitor calibration device from X-Rite. After reading the horrible manual on the cd, and watching some youtube videos, I calibrated using the recommended settings. I set the temp to 6500, the gamma to 2.2, and the luminance to 120.
The problem i'm having is that the mac brightness setting, even set at it's lowest possible setting, is still way over the recommended 110-120 luminance setting. I think 148 is the lowest the imac will go. Because of this, I am not able to properly calibrate my imac. I call up x-rite tech support and they tell me they have never seen anything like this. He told me he knew macs displayed bright, but in 2 years he never witnessed this problem?! Seems odd to me.
I've checked forums, I've spent hours on the phone with these tech guys, and they don't know how to reduce the brightness setting any further. There is so much contradictory info out there, it's hard to know what to do to be honest. Some say to use the native white balance, some say to use different settings.
For the brightness issue, the only option I can think of is to use a program like "Shades" or "Brightness Control" to fix the problem. The creators of these programs even mention on their sites to not use them along with any calibration processes. I tried it anyway, and it did help reduce the luminance setting, but it changed the other settings in return.
If anyone knows a work around for this problem, please let me know. It pisses me off that x-rite even says this device is ok to use on intel macs, if this issue exists. And it irritates me that apple makes their computers so damn bright just so they can show them off in their showrooms. The whole reason I bought my mac was because everyone in the forums rave how they are the best for graphic design and audio. What a waste of a day i'm having here.
Oh yeah..my screen also appears to have a slight reddish tint to it?