User's Manual

User Guide for Chrome 400/500 Series Graphics
SG195-B.1 1/5/2009
Page 96
Orientation area
This group contains four radio buttons, one for each of
the orientations available for selection.
Normal (Primary
landscape)
Click the Normal (Primary landscape) button to
orientate the screen image to the default rotation
position. This image has 0 degrees of rotation.
90 degrees
(Primary portrait))
Click the 90 degrees (Primary portrait) button to
orientate the screen image to a vertical format as if the
image were turned 90 degrees clockwise.
180 degrees
(Secondary
landscape)
Click the 180 degrees (Secondary landscape) button
to orientate the screen image to a horizontal format as if
the image were turned 180 degrees clockwise, or flipped
“upside-down.”
270 degrees
(Secondary
portrait))
Click the 270 degrees (Secondary portrait) button to
orientate the screen image to a vertical format as if the
image were turned 270 degrees clockwise (or 90
degrees counter-clockwise).
Rotation Resolution
Landscape modes are expressed as X by Y for compatibility with 0 or 180
degrees of rotation. Modes with Portrait Orientation are expressed as Y by X for
90 or 270 degrees of rotation. The minimum supported Portrait resolution for
Windows Vista and Windows XP is 768x1024, since the operating systems avoid
providing resolutions with a horizontal size less than 640.
For example, the following sample resolutions might appear in the List All
Modes box on the Monitor tab while in a Landscape Orientation:
800 by 600, High Color (16 bit), 60 Hertz
800 by 600, True Color (32 bit), 60 Hertz
1024 by 768, High Color (16 bit), 60 Hertz
1024 by 768, True Color (32 bit), 60 Hertz
The following are sample modes that would be selectable while you are in a
Portrait Orientation:
768 by 1024, High Color (16 bit), 60 Hertz
768 by 1024, True Color (32 bit), 60 Hertz
If you are in an 800x600x32 landscape resolution before a 90 degree rotation,
the actual resolution you will have after rotation is a portrait 600x800x32. When
you reopen the Display Settings window, the lowest resolution available for
selection will be 768x1024x8, which is different than the actual resolution. If you
select OK, then the resolution will be changed.