Toshiba L455-S1592 User Manual page 171

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 simultaneously again to return the display priority to its
previous setting.
HINT: Holding the
advance you through the display options.
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
Fn
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.
key and pressing the
Fn
and simultaneously to make sure the display
F5
If Something Goes Wrong
Display problems
F5
®
online Help.
171
and
Fn F5
key several times will
®
desktop.