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APER
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3
Doc Number 20AT1020
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E C O M M E N D A T I O N S
The Microportable projector’s native resolutions are 800*600 (SVGA) and 1024*768 (XGA)
based on the model. Driving the projector at this resolution will provide optimal viewing
experience, as the image is mapped, pixel-by-pixel from the computer to the internal electronics.
Thus, the user should attempt to always drive the projectors at their native resolutions.
When a different resolution is used, the projector will automatically scale up or scale down the
image to fit into the internal array. That means that some interpolation of data will be necessary,
and though the circuitry provided is state-of-the-art, it will never be as perfect as the case where no
pixels are modified, added or removed. If the chosen resolution is beyond the range of the
projector, a warning
message will be displayed.
There are applications that will only run at fixed resolutions. Should it be other than SVGA or
XGA, then the next best thing is to let the projector do the scaling. The expansion capabilities of
many older Armada portable products are not as advanced as that of the Microportable projectors
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C
O M M O N P R O B L E M S S E T T I N G
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U P T H E P O R T A B L E
&
P R O J E C T O R
When using a portable with Dual Display capability, it is possible for the user to encounter some
display modes that are not desired.
The image on the projector is only a partial image, and I can pan around it.
What happened here is that the user set the external display to a smaller resolution using the
“overhead projector” icon (or via the display settings utility) without making the desktop area
smaller. Thus, Microsoft Windows “thinks” the user wants a full 1024*768 desktop area to present
information, and that at the same time he only wants a smaller area to be visible on the external
display device. This can easily be corrected by adjusting the “desktop area” to match the “CRT
resolution”. In this case, the complete desktop area will be visible on the external display device.
I have a complete image, but it is smaller than what I have seen before.
What most likely happened is that the user (or application) set the system to a lower resolution
(games do this quite a bit), and then the projector utility set to simultaneous display of this lower
resolution. Then, the black border seen around the internal LCD is also seen on the external
display device, making the overall visible image smaller than normal.
There are two ways to fix this: The user can either press Fn-F4 to cycle to an external display
viewing only (internal LCD blanks), at which the system will automatically drive the projector at
full screen, or the user can set the external device to the smaller resolution using the “overhead
projector” icon on the system tray. If the user is currently showing the image on the internal
computer display, then Fn-F4 will need to be pressed twice in order to switch to the external
display device.
The user can also simply increase the resolution of the external display device, via the “display
properties” tabs that Microsoft Windows provides. The level of flexibility on these adjustments
will be determined by the graphics controller used: single or dual display.
Video (DVD or other) is only seen on one display device.
Although some Armada portables have a Dual Graphics Controller, they still have a single video
processing unit. Thus, while on Dual Display mode, video can only be shown on one display
device (selectable via the advanced settings tabs). If the user desires to view video on both display
devices, the Armada portable must be set in simultaneous display mode, single controller
configuration (resolution must match the internal LCD, and refresh rate must be 60Hz).
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