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    W520: Problem with color calibration

    Discussion in 'Lenovo' started by mexl916, Jul 3, 2011.

  1. mexl916

    mexl916 Newbie

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    Hello,

    I've received my new W520 yesterday. But unfortunately I've a problem with using the color calibration (have the built-in color sensor):
    (1) W520 has factory default settings (no updates from Microsoft or Lenovo). (I did a rollback after discovering the problems listed below)
    (2) I calibrate the display using the integrated color sensor and the PANTONE software
    (3) The calibration works fine.
    (4) When I press Ctrl+Alt+Del the calibration has gone (or whenever this dialog with "you need administrator rights" pops up)
    (5) The only way to bring the calibration back: go to NVIDIA Settings > Display > Adjust desktop color settings, then I click on "use nvidia settings." and afterwards back to "other applications control color settings" (which was also the initial configuration).
    (6) I discovered the same problems using my external color sensor + other calibration software.

    For me it seems that anything overwrites the settings in the LUT. By the way: When I do a restart, I can see about 5 seconds the calibrated colors (at first no calibrated colors, then calibrated colors and then again no calibrated colors). Then I have to manually call this CalibrationLoader from the Startup menu.

    This guy seems to have a similar problem: my gamma automatically changes coming out of stand... - Lenovo Community

    I hope somebody could help me...

    Mexl
     
    mexl916, Jul 3, 2011
    #1
  2. Thors.Hammer

    Thors.Hammer Notebook Enthusiast

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    Are you using a standard user account or is it an administrator for the W520?
     
    Thors.Hammer, Jul 3, 2011
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  3. mexl916

    mexl916 Newbie

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    I'm using an administrator account.
     
    mexl916, Jul 3, 2011
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  4. mexl916

    mexl916 Newbie

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    A guy in the lenovo forum gave me the right hint: Remove the program igfxpers.exe from autoruns.
     
    mexl916, Jul 4, 2011
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