10.8.3 Colorsync profile goes wonky on dedicated GPU on MBP

Yes, yes, yes. I was wondering why the problem kept dis- and reappearing on my MBP. From time to time I run Onyx. Finally someone found a real solution to this ridiculous issue! 😍

how did you delete cache and colorsync data

How do you delete the colorsync user cache with terminal commands? I tried using onyx, but it won't work with Yosemite.

There's a new version of Onyx specifically for Yosemite.

Download from here -

http://www.titanium.free.fr/onyx.html

Hi - Same issue for me. Just appeared for the first time this week, coinciding with Yosemite 10.10.1. (was not an issue with 10.10.0). This is on a MacBook Pro 15" Mid-2010 with Intel HD Graphics built in, and NVidia GeForce GT330M graphics in PCI.

First noticed a very blue cast in the menu bar, Finder windows (and any other white space on the screen), when using Photoshop, and intermittently when running Firefox or Safari. I had the same reaction - did something happen to the color profile of my display? When I launched System Settings (making it the front-most application and sending FIrefox and Photoshop to the background), the screen suddenly switched back to the normal color gamut.

Anyway, long story short, the GPU seems to be my issue. In Energy Saver, I have a check-mark in the box for Automatic Graphics Switching. Un-checking it makes the screen go to the blue cast.

I just ran Onyx about 3 days ago and cleared all the caches etc. But now, I will do it again, and will be back to report on whether or not this issue recurs.

PS - This is not the first time for issues with this model of MacBook Pro. See Mavericks Finder window- and shadow-rendering issues-Screenshots - I had some serious issues with the first few revs of Mavericks that eventually want away. Apple even went through the expense of replacing my logicboard at no charge to me, even thought my Applecare had expired.

I just want to chime in on this thread because I've been battling this issue for months.

The Onyx colorsync cache delete option worked for me. It appears that once you restart (which is part of the process) that it just rebuilds the cache on reboot and it works properly after that.

I use gfxcardstatus to switch between cards and intermittently I'd get the blue tint and it would often stay that way indefinitely. I've run numerous fixes to stop it, but it always comes back. I even had the logic board replaced and it still was happening, so it's probably software. I've so far only had this running for a few minutes, but when I switch cards to discrete there is a brief "blink" I guess and then it is basically the same color as the integrated, previously it had been acting consistently blue tinted, even after a PRAM reset.

So, like I said I've defeated this problem only to have it show back up before, so I'll say that I've bookmarked this page and intend to follow up if the issue returns. Right now it's March 22, 2015. I can't promise I'll post again if it doesn't work permanently, but I intend to. I've had the logic board replaced and this has continued to happen, Apple's Geniuses don't have a SOP for it, so this is a software issue and the Onyx Colorsync Cache fix looks like it's probably the solution some of us have been looking for. If you want to mess around in Terminal that might work, I don't really know.

Computer:

Mid 2012 Macbook Pro 15 Unibody (non-retina), 2.7 Ghz i7, 512 GB Apple SSD, Nvidia GeForce GT 650M w/ 1 GB VRam upgrade, 8GB RAM 1680x1050 screen. OS X 10.8.5

google helper: macbook pro mid 2012 blue tint graphics switching integrated discrete

So just as an update: I have noticed that the blue tint returns, even with this fix. The blue tint return seems to be triggered by doing permissions repairs, which I do fairly regularly. However you can just run OnyX again and it fixes it. So not a perfect and permanent fix, but it'll do.

Apple acknowledged this hardware issue and is repairing it free until February 2016 under a special extended warranty.

check out: https://www.apple.com/support/macbookpro-videoissues

Here is some info from the link.

Apple has determined that a small percentage of MacBook Pro systems may exhibit distorted video, no video, or unexpected system restarts. These MacBook Pro systems were sold between February 2011 and December 2013.

Apple or an Apple Authorized Service Provider will repair affected MacBook Pro systems, free of charge. See below for details on affected models and service options.

Symptoms

An affected MacBook Pro may display one or more of the following symptoms:

• Distorted or scrambled video on the computer screen
• No video on the computer screen (or external display) even though the computer is on
• Computer restarts unexpectedly

Products affected

• 15-inch and 17-inch MacBook Pro models manufactured in 2011
• 15-inch MacBook Pro with Retina models manufactured from Mid 2012 to Early 2013

Note: If your MacBook Pro is not experiencing any of these symptoms and is not one of the products affected, you do not need to contact Apple.

Repair Process

Please choose one of the options below for service. Your MacBook Pro will be examined prior to any service to verify that it is eligible for this program and is otherwise in working order.Note: If your MacBook Pro has any damage, which prevents the repair, such as a cracked screen, that issue will need to be resolved during service. You will be notified about any additional repair charges that are required.Please back up your data before your MacBook Pro is serviced. Learn more about backup options.

Carry-in

• Bring your MacBook Pro to a participating provider - Apple Retail Store or Apple Authorized Service Provider.
• A technician will run a diagnostic test on the MacBook Pro to verify eligibility.
• Repair turn around time will vary based upon parts and technician availability.
• You will be notified when your MacBook Pro is ready for pickup.

Mail-in

• Call Apple and request a postage paid box to send your MacBook Pro to the local Apple Repair Center.
• A technician will run a diagnostic test on your MacBook Pro to verify eligibility.
• The repair process takes approximately 5-7 days from the time your MacBook Pro is received at the repair center until it is returned to you.
• After it has been serviced, your MacBook Pro will be returned to you by mail.

Additional Information

Apple is contacting customers who paid for a repair either though Apple or an Apple Authorized Service Provider to arrange reimbursement. If you have not been contacted, but paid for a repair that you think was due to this issue, please contact Apple.

This worldwide Apple program does not extend the standard warranty coverage of the MacBook Pro.

The program covers affected MacBook Pro models until February 27, 2016 or three years from its original date of sale, whichever provides longer coverage for you.

It worked for me as well, thanks a lot, I was freaking out, as a photographer having to be very detailed in color control, it was not a good issue.

The weird thing for me was: open photoshop, fine, work the picture in camera raw, fine, then open the file to edit in photoshop, and bam!, blue layer...

Anyway I'm a fan of Onyx since long time, and it's not the first time they solve a problem for me. Great app, support them!