koyeung
Level 1 (0 points)

Q: light colors are gone for Mac Mini (late 2012)

Light colors are shown only under the other window's shadow area. (see the alternative row of blue color under TextEdit's shadow). Adjust the display from its OSD / tune using ColorSync doesn't help. (enhance contrast is set to "normal"; PRAM has been reset)

 

Do you have similar issue?

 

IMG_1731.jpg

Mac mini, OS X Mountain Lion (10.8.2)

Posted on Nov 2, 2012 4:48 PM

Close
koyeung

Q: light colors are gone for Mac Mini (late 2012)

  • All replies
  • Helpful answers

Page 1 of 6 last Next

  • by BDAqua,

    BDAqua BDAqua Nov 2, 2012 9:44 PM in response to koyeung
    Level 10 (123,780 points)
    Nov 2, 2012 9:44 PM in response to koyeung

    hello,

     

    Go to System Preferences > Universal Access and down in the Display: section make sure that the Enhance contrast: slider is all the way to left to Normal, or more to the right for less Contrast.

     

    Does it change at either extreme?

  • by koyeung,

    koyeung koyeung Nov 2, 2012 9:53 PM in response to BDAqua
    Level 1 (0 points)
    Nov 2, 2012 9:53 PM in response to BDAqua

    As mentioned in original post, it is set to normal. No idea what the cause is other than hw issue.

  • by BDAqua,

    BDAqua BDAqua Nov 2, 2012 10:54 PM in response to koyeung
    Level 10 (123,780 points)
    Nov 2, 2012 10:54 PM in response to koyeung

    It may be a HW issue, but what does opposite of "Normal" do?

  • by koyeung,

    koyeung koyeung Nov 3, 2012 1:30 AM in response to BDAqua
    Level 1 (0 points)
    Nov 3, 2012 1:30 AM in response to BDAqua

    The opposite of "Normal", i.e. Maximum is even worse and horrible.

  • by mooblie,

    mooblie mooblie Nov 3, 2012 6:04 AM in response to koyeung
    Level 4 (1,935 points)
    Nov 3, 2012 6:04 AM in response to koyeung

    Looks like your display's brightness control (or maybe contrast) is set too high.

    If you reduce them, does it help?

    You can always Colorsync later, but at least you'll find if that's the issue.

  • by koyeung,

    koyeung koyeung Nov 3, 2012 6:13 AM in response to mooblie
    Level 1 (0 points)
    Nov 3, 2012 6:13 AM in response to mooblie

    The brightness level is used to set to level 5 (out of 100) when connected to other mac. Same setting is used to connect to Mac Mini.....it doesn't work as expected. (I tried to reduce it to "0", and same result)

  • by den.thed,Helpful

    den.thed den.thed Nov 3, 2012 8:26 AM in response to koyeung
    Level 7 (27,686 points)
    Nov 3, 2012 8:26 AM in response to koyeung

    What monitor are you using and what connection (HDMI, DVI or VGA)..?

     

    I'm with the others and is seems like a contrast issue either with the Mac Mini or the monitor, but the shade part is a little puzzling.

     

    I might try a different Profile like Adobe RGB, Generic RGB or sRGB IEC61966-2.1 and then play around with the contrast and color settings on the monitor.

     

    1. To get to the Generic Profiles, uncheck the box "Show profiles for this display only"

     

    2. Select a different Profile from the list until you find the best one for your monitor

     

    Screen shot 2012-11-03 at 8.02.51 AM.jpg

     

    3. Then try adjusting the settings on your monitor.

     

    Optionally you can keep trying to Calabrate... and saving different Profiles until your happy, but as you can see I have no less than 4 tries for my W2253 LG monitor and even then had to work on the monitor's contrast and color setting.

  • by koyeung,

    koyeung koyeung Nov 3, 2012 5:38 PM in response to den.thed
    Level 1 (0 points)
    Nov 3, 2012 5:38 PM in response to den.thed

    Mine is connecting to LG237L via HDMI.

     

    None of the other profiles works (i.e. could not show light colors correctly). Lastly, we do calibration (together with monitor contrast/brightness adjustment) and it hardly show light color out of the shadow. However, the gray light color appear as either light blue or light-orange.

  • by den.thed,

    den.thed den.thed Nov 3, 2012 6:23 PM in response to koyeung
    Level 7 (27,686 points)
    Nov 3, 2012 6:23 PM in response to koyeung

    Humm...

     

    It looks like your LG only supports HDMI or VGA input if I'm right...?

     

    Think I would next try a different HDMI cable. Then if that did not help, try either a different monitor (exchange if new) or a different model.

     

    I'm using the HDMI to DVI adapter and a DVI-D cable with my LG W2253TQ and see the alternating blue/white here and in other windows just fine.

     

    Screen shot 2012-11-03 at 6.07.09 PM.jpg

  • by koyeung,

    koyeung koyeung Nov 3, 2012 6:22 PM in response to den.thed
    Level 1 (0 points)
    Nov 3, 2012 6:22 PM in response to den.thed

    I've tried two HDMI cable (one of them is from Apple). No difference.

     

    Hope I could attach it to other monitor and see the difference.

     

    btw, just find two useful pages; mine can't distingush last two level and first five levels. My monitor and calibration is not so successful.

     

    http://www.photofriday.com/calibrate.php

    http://www.lagom.nl/lcd-test/contrast.php

     

    thanks

  • by den.thed,

    den.thed den.thed Nov 3, 2012 6:50 PM in response to koyeung
    Level 7 (27,686 points)
    Nov 3, 2012 6:50 PM in response to koyeung

    Try re-Calabrating a new Profile in Expert Mode, uncheck Use Native Gamma and set the Linear Gamma from 1.8 to 2.2, then name and save the Profile.

     

    see >  ColorSync for Mac OSX

  • by koyeung,

    koyeung koyeung Nov 3, 2012 6:53 PM in response to den.thed
    Level 1 (0 points)
    Nov 3, 2012 6:53 PM in response to den.thed

    has already done that and it works better than before. thx

  • by koyeung,

    koyeung koyeung Nov 3, 2012 6:58 PM in response to den.thed
    Level 1 (0 points)
    Nov 3, 2012 6:58 PM in response to den.thed

    btw, what is the setting you are using on LG mon? Mine has Gamma0, 1 and 2. I use custom color temp (with default values).

  • by den.thed,

    den.thed den.thed Nov 3, 2012 7:48 PM in response to koyeung
    Level 7 (27,686 points)
    Nov 3, 2012 7:48 PM in response to koyeung

    My LG settings are:

     

    Brightness 70 .... it's always a little dark in my office.

    Contrast    20 .... sorry not 70

    Gamma      0

     

    Preset sRGB

    Colors (Red Green Blue) all at 100%

Page 1 of 6 last Next