Toshiba L640-BT2N13 User Manual page 172

172
If Something Goes Wrong
Display problems
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
Fn and 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.
The screen does not look correct.
You can change the display settings by clicking a blank area of the
desktop with the secondary control button, then clicking
Personalize. This opens the Personalization window. Choose a
theme for your desktop background, under Colors, Sounds, and
Screen Saver, or change the settings for each of these components
individually. Click Display and then Change display settings to
choose the screen resolution.
For more information, see the Windows
A message displays saying that there is a problem with your
display settings and that the adapter type is incorrect or the
current settings do not work with your hardware.
Reduce the size of the color palette to one that is supported by the
computer's internal display.
To change the display properties:
1 Right-click in a blank area of the Windows
2 Click Personalize, and then Display.
3 Adjust the screen resolution and/or color quality.
4 Click OK.
simultaneously again to return the display priority to its
HINT: Holding the
Fn
advance you through the display options.
and simultaneously to make sure the display
Fn F5
key and pressing the
®
online Help.
and
Fn F5
key several times will
F5
®
desktop.