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  1. #1

    Member Since
    Mar 02, 2007
    Powerbook screen looks washed out until reboot
    My wife and I have separate users on our Powerbook. When I first login, everything looks fine. When she logs in and then I switch back to my user, the screen contrast changes after the user switch animation is complete. It's normal during the switch animation, then there is a noticeable flash and it looks washed out.

    After that, I have to reboot to get the contrast back to normal.

    My wife and I don't have anything in our startup folders, the universal options aren't changing, and I don't see anything weird when I run top in the terminal. Even if my wife logs out it doesn't go back to normal.

    Does anyone know what might be causing this?

  2. #2

    cazabam's Avatar
    Member Since
    Jun 06, 2006
    MacBook 2.0GHz White, 512MB RAM, 60GB HDD
    this is a very strange known bug in OS X 10.4 (Tiger). There seems to be some issues with colour profiles used when switching users. The way to fix it is as follows:

    1) Browse to the following folder: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/

    2) Run the program named DMProxy

    This will fix the problem until the next reboot. You could copy DMProxy to /Applications/Utilities to have each access in future. I'm sure there must be an easy way to get it to run automatically on startup, so I'll have a fiddle and post back later.

  3. #3

    Member Since
    Mar 02, 2007
    That does the trick.


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