PaullieG
Level 1 (1 points)

Q: Screen colour temperature changes (bluer) when running web video, iDVD

An odd intermittent issue I noticed since upgrade from Lion to Mountain Lion.

 

Noticed on MacBook Pro 15" (high resolution), Early 2011 (MacBookPro8,2).

 

When I launch iDVD the screen turns brighter and a more blue-ish hue. It reverts when I close iDVD.

 

Issue is not isolatied to iDVD, for example it also occurs when running BBC Olympics web video content:

 

http://www.bbc.co.uk/sport/olympics/2012/live-video/bbc_one_2012_hd

 

Anyone know the cause or have a workaround? Driving me crazy!

MacBook Pro (15-inch Early 2011), OS X Mountain Lion

Posted on Jul 28, 2012 1:02 PM

by weldr,Solvedanswer
weldr weldr
Level 1 (10 points)
A:

I'm on 10.8.3.  My path was a clean install to 10.8, migrate user settings, then upgrade to 10.8.2, then 10.8.3. MacBook Pro 6,2.

 

Here's what fixed it for me.  Shut down.  Start in Safe Mode; when the system comes up, shut down again.

 

I've been using my MacBook Pro for a couple weeks and so far the fix seems permanent.  (You can verify that the system is switching the graphics cards by looking at About this Mac - the active card will say Main Display)

Posted on Mar 18, 2013 12:45 PM

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PaullieG

Q: Screen colour temperature changes (bluer) when running web video, iDVD

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  • by PaullieG,

    PaullieG PaullieG Mar 18, 2013 2:38 PM in response to weldr
    Level 1 (1 points)
    Mar 18, 2013 2:38 PM in response to weldr

    weldr -- I think you cracked it! Safe boot fixed tried and looks promising (I switched display mode a few times using gfxCardStatus over different boots).

     

    I'm still on 10.8.2!

     

    Massive thanks!

     

    For those not wanting to Google Safe Mode:

     

    • Be sure your Mac is shut down.
    • Press the power button.
    • Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    • Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).

  • by Giando,

    Giando Giando Mar 19, 2013 1:13 AM in response to weldr
    Level 1 (0 points)
    Mar 19, 2013 1:13 AM in response to weldr

    Didn't work for me..

  • by weldr,

    weldr weldr Mar 19, 2013 9:39 AM in response to Giando
    Level 1 (10 points)
    Mar 19, 2013 9:39 AM in response to Giando

    Giando, not to make you keep trying everything, but perhaps try the following.  I went back and looked at my change log notes (ya I'm an IT guy so I log everything) and realized that I cleared some caches, here's exactly my steps.

     

    Cleared the system kernel extension cache (I used root, you can sudo also):

      kextcache -system-prelinked-kernel

      kextcache -system-caches

    Then I did the Safe Mode boot as Paullie outlined above.

     

    I hope it works for you, if not then I hope someone fixes it because I agree, it was very annoying, especially if you have something like a 5K color profile because it switches from "page white" to "crazy bright blue"!

  • by Giando,

    Giando Giando Mar 19, 2013 10:41 AM in response to weldr
    Level 1 (0 points)
    Mar 19, 2013 10:41 AM in response to weldr

    Thank you very much weldr, but it did not work.

     

    I tried before giving your commands and doing safe boot and it did not work.

     

    Then deleting the system cache with Onyx and doing safe boot! Unfortunately it does not work!

     

    I do not know if I'm wrong something.

    I turned off the switch of the video card and use only that AMD!

    If I have time, I'll do a clean install.

    Again, thank you!

  • by WillK,

    WillK WillK Aug 7, 2013 7:15 AM in response to PaullieG
    Level 1 (0 points)
    Aug 7, 2013 7:15 AM in response to PaullieG

    I had this issue with my Early 2011 15" MacBook Pro.  Here's what I did to fix it:

     

    1. Reset the PRAM

    http://support.apple.com/kb/PH11243

     

    2. Reset the SMC

    http://support.apple.com/kb/HT3964

     

    3. Run Onyx

    http://www.titanium.free.fr/downloadonyx.php

    I just went to the Automation tab and clicked Execute...I didn't change any check boxes.  After it did it's thing, and I restarted my computer, I had no problems.

     

    Hopefully this helps.

  • by WillK,

    WillK WillK Aug 7, 2013 10:09 AM in response to WillK
    Level 1 (0 points)
    Aug 7, 2013 10:09 AM in response to WillK

    Actually I spoke too soon...that doesn't fix it.

  • by WillK,

    WillK WillK Aug 7, 2013 10:36 AM in response to WillK
    Level 1 (0 points)
    Aug 7, 2013 10:36 AM in response to WillK

    Here's what finally worked for me:

     

    1. Run Onyx

    Go to the Cleaning tab and click Execute (deletes system cache and other things)

     

    2. Shut down immediately after Onyx is done.  Don't restart.

     

    3. The first time you start up after Onyx is done, start up in safe mode. 

     

    4. Shut down from safe mode, then startup normally.

     

    It appears to work after three restarts...what an annyoing problem.

  • by Giando,

    Giando Giando Aug 19, 2013 12:53 AM in response to WillK
    Level 1 (0 points)
    Aug 19, 2013 12:53 AM in response to WillK

    For me it does not work. It has never worked no solution even temporarily.

  • by jasonfweb,

    jasonfweb jasonfweb Aug 29, 2013 3:36 AM in response to PaullieG
    Level 1 (5 points)
    iPhone
    Aug 29, 2013 3:36 AM in response to PaullieG

    Nothing seem to work.

     

     

     

    The only solution I found is to log out and log in again. By removing automatic log in I now solved the issue, and it has not presented itself in 2 weeks now.

  • by jmprod,

    jmprod jmprod Sep 1, 2013 11:47 AM in response to PaullieG
    Level 1 (0 points)
    Sep 1, 2013 11:47 AM in response to PaullieG

    Not sure why everyone is going to extreme routes.  It's just the new way of conserving power when you go to automatic graphics switching.  The Nintendo 3DS does the same thing when you turn Power Saver on.  You didn't have to reinstall anything.

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