Alienware M17X Dokumentacja Strona 48

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CHAPTER 6: TROUBLESHOOTING
If the display is difcult to read
Adjust the brightness:
Press <Fn><F4> to increase brightness or <Fn><F5> to decrease brightness.
Adjust the Windows display settings:
Windows Vista
Click 1. Start (Windows Vista
®
logo) > Control Panel > Hardware and Software >
Personalization > Display Settings.
Adjust 2. Resolution and Colors settings, as needed.
Connect an external monitor:
Shut down your computer and connect an external monitor to the computer. 1.
Turn on the computer and the monitor, and then adjust the monitor 2.
brightness and contrast controls.
If the external monitor works, the computer display or video controller may be
defective. Contact Alienware support (for details, refer to “CONTACTING ALIENWARE“
on page 90).
Monitor
If the display is blank
NOTE: If you are using a program that requires a higher resolution than your
computer supports, it is recommended that you attach an external monitor
to your computer.
Check the battery:
If you are using a battery to power your computer, the battery charge may be
depleted. Connect the computer to an electrical outlet using the AC adapter, and
then turn on the computer.
Test the electrical outlet:
Ensure that the electrical outlet is working by testing it with another device, such
as a lamp.
Check the AC adapter:
Check the AC adapter cable connections and ensure that the light is on.
Connect the computer directly to an electrical outlet:
Bypass power protection devices, power strips, and extension cables to verify that
the computer turns on.
Switch the video image:
If your computer is attached to an external monitor, press <Fn><F6> to switch the
video image to the display.
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