HP M900 Monitor User’s Guide
Using Your Display
Making Basic Adjustments
To adjust the contrast (image white level) use these buttons. Contrast is the difference in brightness between the dark and light parts of the displayed image.
To adjust the overall picture brightness (image black level) use these buttons. Set the brightness level so that the dark areas of the displayed image remain black.
Your display will store brightness and contrast levels automatically.
Adjusting the Size, Shape, and Position of the Displayed Image
Horizontal Size and Position
Press 
. Use 
and 
to adjust the horizontal position of the
displayed image. Use 
and 
to adjust the horizontal size.
Vertical Size and Position
Press 
. Use 
and displayed image. Use 
to adjust the vertical position of the
and 
to adjust the vertical size.
Rotation control
Depending on the orientation of your display, for example, whether it faces north or south, you may experience some rotation of the image. This effect is due to the influence of the earth's magnetic field and is normal for all displays.
To adjust the displayed image, press 
. Then press 
to rotate
the image clockwise, or press 
to rotate the image
Pincushion control
If the vertical edges of the image appear to bow in or out, press 
and then use 
and 
to reshape. For best results, adjust so that the left edge of the image is straight. You can then use the Right Pincushion control described later to adjust the right edge.
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