Toshiba Satellite L300D-ST3503 Resource Manual page 50

50
If something goes wrong
Display problems
Here are some typical display problems and their solutions:
The screen is blank.
Display Auto Off may have gone into effect. Press any key to
activate the screen.
You may have activated the instant password feature by pressing
and
Fn F1
any key, type the password and press
registered, press any key. The screen reactivates and allows you to
continue working.
If you are using the built-in screen, make sure the display priority is
not set for an external monitor. To do this, press
simultaneously (once). If this does not correct the problem, press
and simultaneously again to return the display priority to its
F5
previous setting.
If you are using an external monitor:
❖ Check that the monitor is turned on.
❖ Check that the monitor's power cord/cable is firmly plugged
into a working power outlet.
❖ Check that the cable connecting the external monitor to the
computer is firmly attached.
❖ Try adjusting the contrast and brightness controls on the
external monitor.
❖ Press
priority is not set for the built-in screen.
Small bright dots appear on your TFT display when you
turn on your computer.
Small bright dots may appear on your screen display when you turn
on your computer. Your display contains an extremely large number
of thin-film transistors (TFT) and is manufactured using high-
precision technology. Any small bright dots that may appear on
your display are an intrinsic characteristic of the TFT
manufacturing technology. Over a period of time, and depending on
the usage of the computer, the brightness of the screen will
deteriorate. This is also an intrinsic characteristic of the screen
technology. When the computer is operated on battery power, the
screen will dim and you may not be able to increase the brightness
of the screen while on battery power.
simultaneously. If you have registered a password, press
HINT: Holding the
Fn
advance you through the display options.
Fn and F5 simultaneously to make sure the display
. If no password is
Enter
key and pressing the
Fn and F5
key several times will
F5
Fn