Dell Latitude XT (Late 2007) - Manual (Page 139)

Troubleshooting 139
If only part of the display is readable
C
O N N E C T A N E X T E RN A L M O N I T O R —
1 Shut down your Tablet-PC and connect an external monitor to the Tablet-PC.
2 Turn on the Tablet-PC and the monitor and adjust the monitor brightness and
contrast controls.
If the external monitor works, the Tablet-PC display or video controller may be
defective. Contact Dell (see "Contacting Dell" on page 26).
When using a projector, the projected image is rotated and unreadable
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O T A T E T H E D I S P L A Y I M A G E T O A R E A D A B L E O R I E N T A T I O N U S I N G TH E S CR E E N
RO TA T E B U T T O N — See "Using Tablet Buttons" on page 62 for more
information on the Screen Rotate button. See "Using Your Tablet-PC With a
Projector" on page 95 for more information on using the Tablet-PC with a
projector.
Power Lights
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
The power button LED ring, located on the Tablet-PC, display illuminates and blinks
or remains solid to indicate different states:
• If the power light is blinking blue, the computer is in sleep or standby
mode. Press a key on the keyboard, move the mouse, or press the power
button to resume normal operation.
• If the power light is off, the computer is either turned off or is not
receiving power.
–
Reseat the power cable into both the power connector on the back of
the computer and the electrical outlet.
– If the computer is plugged into a power strip, ensure that the power
strip is plugged into an electrical outlet and that the power strip is
turned on.
– Bypass power protection devices, power strips, and power extension
cables to verify that the computer turns on properly.
– Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
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