Snow Leopard changed the brightness range of MBP 13" ?

HI all,

I have an iMAC 20" with ati, and updgraded 10.5 to snow leopard.
The screen has lost the brillancy.

I tried to perform the calibration but... still bad colors 😟 i tried also to set gamma back to 1.8 but still bad colors.

I like dark screen with low "backlight (f1)" but noway. When i put my backlight at minium still too contrasted screen.

Snow Leopard seem too contrasted and too bright.
What can i do?

--
Andrea

I am in the same boat as you guys as well, same panel, same problem.
uriaha, thank you very much for the pics that you posted.

A co-worker of mine has the same exact MacBook as I have (2.53GHz 13" MacBook Pro), he and I both have Snow Leopard on our MacBooks, only mine is having this issue and his is not :\

Next time I get the chance I'll check to see if he has the 9CC2 screen and post it. This way we can determine if the 9CC2 screen is the real cause of these problems or if it is some sort of anomaly. But we can most certainly say that Snow Leopard alone is not the cause of it.

I hypothesize that the cause of this issue is Snow Leopard + the 9CC2 screen.

Also, I am attempting to get help from a local Apple affiliate, but they are only proving to be mindless idiots.

Please keep us up to speed and thank you for the thread 🙂

Okay, I just checked out my co-worker's MacBook and he has the 9C9E screen.

Also, I tried an SMC reset and it did not work.

This is starting to get on my nerves more and more. I do not have enough battery life to make it through all of my classes, I used to, but not since Snow Leopard.

If I come up with anything new I will keep you guys posted.

Before Snow Leopard I was able to get almost 7 hours out of a full charge but now i cannot even get 5 and they say you should be getting around 6. If they don't fix this with an update I suppose I will try rubbing that little fact in their face until I get what I want. My patience is wearing thin.

Message was edited by: TheFreeman

Any word on a resolution to this issue? I also have the 9CC2 and just upgraded to snow leopard an hour ago. I have the same brightness problems you guys have been describing.

so after few days i solved doing this:

- removing all personalized color profiles
- rebooting the machine
- calibrating a new profile without "expert/extra option"
- then rebooting machine again
- calibrating the screen again

I don't know if could work for you too, but i have done in this way.

Hope helps,
--
Andrea

Hi,
I have a MBP 13 with 9CC2 display, same problem, the most annoying thing is that battery lasts much less than before after installing Snow Leopard.

Any news from Apple about this problem?

Yeah, I've also got a 9CC2 panel on my 13 inch MBP, Snow Leopard considerably reduced my battery life due to the increase in brightness. I've reinstalled Leopard.. hope apple are working on a fix!

A.Dessi, I tried what you said. I could not get it to work.

I might have been doing it wrong though, is there a certain brightness level that you need to have it on when you calibrate it, or does it not matter?

If if does, I calibrated mine on the highest brightness. If it doesn't, I am an idiot.

TheFreeman,

i don't think there's a certain brightness level when calibrating, i've just done that and i've noticed the brightness level now is normal.

Maybe, mine, it's just a coincidence.

Anyway i am afraid of re-calibrate my screen again :\\

This is ridiculous, i've tried re-calibrating my screen multiple times to no effect. I can't afford to lose the battery life by installing Snow Leopard, but equally, I bought it for a reason, i've now had it for 2 weeks but I refuse to install it at present given the brightness flaw. How difficult can this be to get fixed, Apple? It just works? Clearly not..

I have the same issue. I have an appointment at the Genius bar tomorrow to try to resolve.

Did the genius solve our issue???

Yes, really curious what you found out

I had a phone call with an apple support specialist for a hour last week trying to see if there has been a fix. As of thursday, this is what they said in an email:

"I have heard from Portables Support Engineering, at this time Apple has received reports of this behavior and is investigating those reports. The only workaround other then simply using the lowest brightness available would be to revert to OS X 10.5.8 at this time."

Bummer...