How to fix 15" rMBP Samsung yellowish tint

Discussion in 'MacBook Pro' started by pedrofan, Apr 28, 2013.

  1. pedrofan, Apr 28, 2013
    Last edited: Apr 29, 2013

    pedrofan macrumors 6502

    Joined:
    Jun 9, 2008
    #1
    Since I bought my retina Macbook pro back in January I've gotten a lot of troubles with it. Two broken logic boards, two LG screens with image retention, GPU throttling issues.. etc, etc, etc..

    But finally after a lot of time spent in the technical service, I have a Samsung screen and a good logic board... but wait a minute, it looks so yellowish!!

    I think that the problem is that when they exchanged the LG screen for the Samsung screen, OSX remained calibrated for the original LG screen as they didn't change the hard drive.

    I really don't want to go to a Genius bar again in my life, so I tried to make the trick with OSX's integrated Image Calibration tool.

    Just go to  / System Preferences / Displays / Color / Calibrate / Click Expert Mode and continue / Go through all steps / Set gamma 2,2 / And at the end just set the white point to a level that a white safari's background looks white.

    My white point is set to 8000 ºK, and now it looks just OK. Which is yours?


    [​IMG]
     
  2. anarti macrumors regular

    Joined:
    Nov 28, 2012
    Location:
    Scotland
    #2
    8000K is a very cool color temperature. you need to calibrate your screen to 2,2 gamma, 6500K,

    Ask someone with calibration sensor.
    Setting screen to 8000K is just wrong.

    I have Samsung replaced from LG in my rMBP and it has some yellow patches etc even after calibration. I can't be bothered any more as I use external Eizo monitor for my photography and general stuff.

    Originally retina is very yellow/red. After calibration it cools down with color temperature.
     
  3. pedrofan, Apr 29, 2013
    Last edited: Apr 29, 2013

    pedrofan thread starter macrumors 6502

    Joined:
    Jun 9, 2008
    #3
    I don't know what is happening with this display, but, altough 6500k should be the default white point, it has it at 8000ºk for some reason (at least in my case). At 6500 º it looks definetly yellow. At 8000 it looks white and greys grey.
     
  4. pedrofan thread starter macrumors 6502

    Joined:
    Jun 9, 2008
    #4
    I updated the original post with pictures taken with iphone's camera with AE/AF lock, comparing both calibrations with color picker. At 8000ºk it has neutral white, at least for my screen.
     
  5. fskywalker, Apr 29, 2013
    Last edited: Apr 29, 2013

    fskywalker macrumors 65816

    fskywalker

    Joined:
    Nov 6, 2009
    #5
    Thanks for the information. The default values on my Samsung equipped rMBP are 2.2 for gamma, 6506K for the white. 8000k would turn my screen blueish color, I'm letting my colors default for now.
     
  6. thekev macrumors 604

    thekev

    Joined:
    Aug 5, 2010
    #6
    I've used Eizo since the CG211, which was arguably one of the best. Using any profiling software like i1, you will find that the cMBP measured at native white point will come out around 8000K. They are very cold displays. The rMBP has been reported as closer to sRGB. Also take note that in the generic color lcd profile, it doesn't have all channels set to 2.2. Red is something like 2.4 and green is much lower. This is assuming the default profile and cMBP. You can look it up. Notebooks are very limited in what you can do to calibrate them compared to your Eizo. The Eizo can make corrections internally, so the profile is primarily used to describe the display to the OS and the actual output instructions are left linear. With a notebook it makes these changes via a per channel transformation matrix. As I said, it's more limited. Have you experienced decent results with D65 on the cMBP? I tried that as I prefer the sRGB look. It causes too much weird behavior.

    For the OP, I would typically advise against the use of the calibration assistant in OSX. It does sort of the same thing as the other software in the way that it sets output instructions if I'm not mistaken, but it's very very quirky, and it has no way to update the gamut description. Also it's typical to run a display 30 minutes prior to calibrating and turn off any energy savers. I doubt most people do any of that when they mess with this stuff.
     
  7. pedrofan thread starter macrumors 6502

    Joined:
    Jun 9, 2008
    #7
    Is there any alternative software to calibrate the display?
     
  8. thekev macrumors 604

    thekev

    Joined:
    Aug 5, 2010
    #8
    You can use a colorimeter and whatever software comes with it for better results. These are comparative, and I don't know the camera settings used, but you shouldn't have to shift something that far to compensate. Some people have mentioned there being a bonding issue that has to settle. You may find more on that looking through the forums, but 90% of what you get out of that display is what comes from the factory. Calibration is used to stay as close as possible to a specific target over time. If you're working with photography or something like that, consistency is important. Displays are not always perfect, and they are unstable devices by their nature. A year from now they look different at the same settings, so for critical applications people tend to measure the values.
     
  9. anarti macrumors regular

    Joined:
    Nov 28, 2012
    Location:
    Scotland
    #9
    thekev - I've only calibrated rMBP so cannot tell.

    With retina, I keep it at about D5500 to be on pair with my Eizo @ D6500 :)

    Something is not right :)
     
  10. Giuly macrumors 68040

    Giuly

    #10
    Maybe that Samsung makes these displays.
     
  11. Moshe1010 macrumors 6502a

    Joined:
    Jun 27, 2010
  12. fskywalker, Apr 30, 2013
    Last edited: Apr 30, 2013

    fskywalker macrumors 65816

    fskywalker

    Joined:
    Nov 6, 2009
    #12
  13. BL4zD macrumors 6502

    Joined:
    Sep 22, 2010
    #13
    rename the file with an .icc extension and put it in either
    /Library/ColorSync/Profiles
    or
    ~/Library/ColorSync/Profiles

    then you can open Displays properties and uncheck "show profiles for this display only" and it should show up as 'Apple RMBP 2012.08'

    I don't know how it was calibrated and I think each monitor is unique so not sure how much benefit this would give anyone but that's how you use the file
     
  14. fskywalker macrumors 65816

    fskywalker

    Joined:
    Nov 6, 2009
    #14
    Nice!!! Just installed it and my Samsung display does look a little more white than the factory setting!! Will try it for a while to see how it performs in multiple colors and programs.

    Thanks!!
     
  15. USC_Gamecock macrumors regular

    USC_Gamecock

    Joined:
    Sep 22, 2004
    Location:
    HTX
    #15
    Maybe you guys can clear this up for me -- I thought the yellow tint was just some substance/glue from newly put together LCD's. And over time, the yellow tint will go away when the substance fully cures/evaporates.

    I forgot where I read this -- is this only with iPhones?
     
  16. Shmanky, Oct 2, 2013
    Last edited: Oct 2, 2013

    Shmanky macrumors regular

    Joined:
    Jul 26, 2005
    Location:
    Toronto
    #16
    Here's mine.

    Edit: To be clear, mine is the display on the right, the yellow one. The display on the left is an in-store unit.

    [​IMG]
     
  17. dastinger macrumors 6502a

    dastinger

    Joined:
    Mar 18, 2012
    #17
    Did you use the same profile as the OP? If not, could you share yours, please?
     
  18. Shmanky, Oct 2, 2013
    Last edited: Oct 2, 2013

    Shmanky macrumors regular

    Joined:
    Jul 26, 2005
    Location:
    Toronto
    #18
    I've tried all the ICC profiles I've seen people post around the Internet. None of them help. I bought a Spyder4Elite colour calibrator. That didn't help. It just makes the screen purplish-yellowish. You want the ICC profile I made with the Spyder4Elite? It won't help. I don't even use it. I just use the default colour profile and turn up the native white point up past 8000 K.

    But anyway, here's an ICC file I made with the Spyder4Elite I bought for 200 bucks to try to solve the problem that Apple refuses to help me with. Put it in ~/Library/ColorSync/Profiles . It won't help though.

    http://merchv.com/Apple/Spyder4-Apple-Color-LCD-1.icc

    Edit: I hope you didn't think my display was the nice one on the left. That's a store unit. My display is the yellow one on the right.
     
  19. dastinger macrumors 6502a

    dastinger

    Joined:
    Mar 18, 2012
    #19
    Oh ok. Thought both were yours and you were making a comparison. I am using the profile that's available on this same thread and have been really happy with it since. I was just curious to test yours.. did it and, you're right, purple all around.
     
  20. priitv8, Dec 21, 2013
    Last edited: Dec 21, 2013

    priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #20
    Your profile has just one small glitch: because it doesn't contain the 'mmod' tag specifying that this profile is Apple Display specific, Color Preference pane does hide this profile if you check the Show profiles for this display only checkbox.
    I managed to copy the tag from Apple provided default profile (Color LCD) using the sips command-line tool:
    First export the tag from Apple's profile (you may need to identify it's filename beforehand!)
    Code:
    sips -X mmod /Users/priit/tag.bin /Library/ColorSync/Profiles/Displays/Color\ LCD-F7E52F93-B4AC-312E-87ED-39669F5C08B8.icc
    Second add the tag from exported file to our profile
    Code:
    sips --loadTag mmod /Users/priit/tag.bin /Library/ColorSync/Profiles/Displays/Apple_RMBP_Samsung.icc
    That's it!

    PS After I calibrated my display with a colorimeter, it appeared that the Apple_RMBP_Samsung.icc is slightly blue for my display.
     
  21. dastinger macrumors 6502a

    dastinger

    Joined:
    Mar 18, 2012
    #21
    Could you, please, share the color profile? The one after you calibrated.
     
  22. priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #22
    Yes, sure!
     

    Attached Files:

  23. dastinger macrumors 6502a

    dastinger

    Joined:
    Mar 18, 2012
    #23
    Thanks a lot mate.. does not work for mine unfortunately.. it becomes blue-ish and really faded.
     
  24. BuCkDoG macrumors 6502

    Joined:
    Jun 13, 2013
  25. priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #25
    That's the whole idea of screen calibration ;)
    To compensate the specific imperfections of your particular screen.
    My screen must have warmer hue than yours, from the factory then.
    PS the D65 whitepoint means it's set for 6500K.
     

Share This Page